diff --git a/API.md b/API.md
index 9c2171c..24933d4 100644
--- a/API.md
+++ b/API.md
@@ -309,8 +309,7 @@ automatically considered in-memory only. It cannot end with a <code>~</code> whi
 perform crash-safe writes. Not used if <code>options.inMemoryOnly</code> is <code>true</code>.</p>
     - [.inMemoryOnly] <code>boolean</code> <code> = false</code> - <p>If set to true, no data will be written in storage. This option has
 priority over <code>options.filename</code>.</p>
-    - [.mode] <code>object</code> - <p>Permissions to use for FS. Only used for
-Node.js storage module.</p>
+    - [.modes] <code>object</code> - <p>Permissions to use for FS. Only used for Node.js storage module. Will not work on Windows.</p>
         - [.fileMode] <code>number</code> <code> = 0o644</code> - <p>Permissions to use for database files</p>
         - [.dirMode] <code>number</code> <code> = 0o755</code> - <p>Permissions to use for database directories</p>
     - [.timestampData] <code>boolean</code> <code> = false</code> - <p>If set to true, createdAt and updatedAt will be created and
@@ -838,7 +837,7 @@ with <code>appendfsync</code> option set to <code>no</code>.</p>
     - [.corruptAlertThreshold] <code>Number</code> - <p>Optional, threshold after which an alert is thrown if too much data is corrupt</p>
     - [.beforeDeserialization] [<code>serializationHook</code>](#serializationHook) - <p>Hook you can use to transform data after it was serialized and before it is written to disk.</p>
     - [.afterSerialization] [<code>serializationHook</code>](#serializationHook) - <p>Inverse of <code>afterSerialization</code>.</p>
-    - [.mode] <code>object</code> - <p>Modes to use for FS permissions.</p>
+    - [.modes] <code>object</code> - <p>Modes to use for FS permissions. Will not work on Windows.</p>
         - [.fileMode] <code>number</code> <code> = 0o644</code> - <p>Mode to use for files.</p>
         - [.dirMode] <code>number</code> <code> = 0o755</code> - <p>Mode to use for directories.</p>
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 561dd7e..c3c51ce 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,7 +13,7 @@ to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 - An auto-generated JSDoc file is generated: [API.md](./API.md).
 - Added `Datastore#dropDatabaseAsync` and its callback equivalent.
 - The Error given when the `Datastore#corruptAlertThreshold` is reached now has three properties: `dataLength` which is the amount of lines in the database file (excluding empty lines), `corruptItems` which is the amount of corrupted lines, `corruptionRate` which the rate of corruption between 0 and 1.
-- Added a `mode` option which allows to set the file and / or directory modes, by default, it uses `0o644` for files and `0o755` for directories, which may be breaking.
+- Added a `modes: { fileMode, dirMode }` option to the Datastore which allows to set the file and / or directory modes, by default, it uses `0o644` for files and `0o755` for directories, which may be breaking.
 
 ### Changed
 - The `corruptionAlertThreshold` now doesn't take into account empty lines, and the error message is slightly changed.
diff --git a/index.d.ts b/index.d.ts
index 1512156..bbbd4af 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -113,6 +113,7 @@ declare namespace Nedb {
     afterSerialization?(line: string): string;
     corruptAlertThreshold?: number;
     compareStrings?(a: string, b: string): number;
+    modes?: {fileMode: number, dirMode: number};
   }
 
   interface UpdateOptions {
diff --git a/lib/datastore.js b/lib/datastore.js
index da39c05..140cccf 100755
--- a/lib/datastore.js
+++ b/lib/datastore.js
@@ -165,10 +165,9 @@ class Datastore extends EventEmitter {
    * perform crash-safe writes. Not used if `options.inMemoryOnly` is `true`.
    * @param {boolean} [options.inMemoryOnly = false] If set to true, no data will be written in storage. This option has
    * priority over `options.filename`.
-   * @param {object} [options.mode] Permissions to use for FS. Only used for
-   * Node.js storage module.
-   * @param {number} [options.mode.fileMode = 0o644] Permissions to use for database files
-   * @param {number} [options.mode.dirMode = 0o755] Permissions to use for database directories
+   * @param {object} [options.modes] Permissions to use for FS. Only used for Node.js storage module. Will not work on Windows.
+   * @param {number} [options.modes.fileMode = 0o644] Permissions to use for database files
+   * @param {number} [options.modes.dirMode = 0o755] Permissions to use for database directories
    * @param {boolean} [options.timestampData = false] If set to true, createdAt and updatedAt will be created and
    * populated automatically (if not specified by user)
    * @param {boolean} [options.autoload = false] If used, the database will automatically be loaded from the datafile
@@ -263,7 +262,7 @@ class Datastore extends EventEmitter {
       afterSerialization: options.afterSerialization,
       beforeDeserialization: options.beforeDeserialization,
       corruptAlertThreshold: options.corruptAlertThreshold,
-      mode: options.mode
+      modes: options.modes
     })
 
     // This new executor is ready if we don't use persistence
diff --git a/lib/persistence.js b/lib/persistence.js
index b110ba5..2d21aaa 100755
--- a/lib/persistence.js
+++ b/lib/persistence.js
@@ -46,18 +46,18 @@ class Persistence {
    * @param {Number} [options.corruptAlertThreshold] Optional, threshold after which an alert is thrown if too much data is corrupt
    * @param {serializationHook} [options.beforeDeserialization] Hook you can use to transform data after it was serialized and before it is written to disk.
    * @param {serializationHook} [options.afterSerialization] Inverse of `afterSerialization`.
-   * @param {object} [options.mode] Modes to use for FS permissions.
-   * @param {number} [options.mode.fileMode=0o644] Mode to use for files.
-   * @param {number} [options.mode.dirMode=0o755] Mode to use for directories.
+   * @param {object} [options.modes] Modes to use for FS permissions. Will not work on Windows.
+   * @param {number} [options.modes.fileMode=0o644] Mode to use for files.
+   * @param {number} [options.modes.dirMode=0o755] Mode to use for directories.
    */
   constructor (options) {
     this.db = options.db
     this.inMemoryOnly = this.db.inMemoryOnly
     this.filename = this.db.filename
     this.corruptAlertThreshold = options.corruptAlertThreshold !== undefined ? options.corruptAlertThreshold : 0.1
-    this.mode = options.mode !== undefined ? options.mode : { fileMode: DEFAULT_FILE_MODE, dirMode: DEFAULT_DIR_MODE }
-    if (this.mode.fileMode === undefined) this.mode.fileMode = DEFAULT_FILE_MODE
-    if (this.mode.dirMode === undefined) this.mode.dirMode = DEFAULT_DIR_MODE
+    this.modes = options.modes !== undefined ? options.modes : { fileMode: DEFAULT_FILE_MODE, dirMode: DEFAULT_DIR_MODE }
+    if (this.modes.fileMode === undefined) this.modes.fileMode = DEFAULT_FILE_MODE
+    if (this.modes.dirMode === undefined) this.modes.dirMode = DEFAULT_DIR_MODE
     if (
       !this.inMemoryOnly &&
       this.filename &&
@@ -112,7 +112,7 @@ class Persistence {
       }
     })
 
-    await storage.crashSafeWriteFileLinesAsync(this.filename, lines, this.mode)
+    await storage.crashSafeWriteFileLinesAsync(this.filename, lines, this.modes)
     this.db.emit('compaction.done')
   }
 
@@ -163,7 +163,7 @@ class Persistence {
 
     if (toPersist.length === 0) return
 
-    await storage.appendFileAsync(this.filename, toPersist, { encoding: 'utf8', mode: this.mode.fileMode })
+    await storage.appendFileAsync(this.filename, toPersist, { encoding: 'utf8', mode: this.modes.fileMode })
   }
 
   /**
@@ -305,17 +305,17 @@ class Persistence {
 
     // In-memory only datastore
     if (this.inMemoryOnly) return
-    await Persistence.ensureDirectoryExistsAsync(path.dirname(this.filename), this.mode.dirMode)
-    await storage.ensureDatafileIntegrityAsync(this.filename, this.mode.fileMode)
+    await Persistence.ensureDirectoryExistsAsync(path.dirname(this.filename), this.modes.dirMode)
+    await storage.ensureDatafileIntegrityAsync(this.filename, this.modes.fileMode)
 
     let treatedData
     if (storage.readFileStream) {
       // Server side
-      const fileStream = storage.readFileStream(this.filename, { encoding: 'utf8', mode: this.mode.fileMode })
+      const fileStream = storage.readFileStream(this.filename, { encoding: 'utf8', mode: this.modes.fileMode })
       treatedData = await this.treatRawStreamAsync(fileStream)
     } else {
       // Browser
-      const rawData = await storage.readFileAsync(this.filename, { encoding: 'utf8', mode: this.mode.fileMode })
+      const rawData = await storage.readFileAsync(this.filename, { encoding: 'utf8', mode: this.modes.fileMode })
       treatedData = this.treatRawData(rawData)
     }
     // Recreate all indexes in the datafile
diff --git a/lib/storage.js b/lib/storage.js
index 32a9ca3..97ad081 100755
--- a/lib/storage.js
+++ b/lib/storage.js
@@ -145,7 +145,7 @@ const flushToStorageAsync = async (options) => {
   } else {
     filename = options.filename
     flags = options.isDir ? 'r' : 'r+'
-    mode = options.mode || DEFAULT_FILE_MODE
+    mode = options.mode !== undefined ? options.mode : DEFAULT_FILE_MODE
   }
   /**
    * Some OSes and/or storage backends (augmented node fs) do not support fsync (FlushFileBuffers) directories,
@@ -227,27 +227,27 @@ const writeFileLinesAsync = (filename, lines, mode = DEFAULT_FILE_MODE) => new P
  * Fully write or rewrite the datafile, immune to crashes during the write operation (data will not be lost).
  * @param {string} filename
  * @param {string[]} lines
- * @param {object} [mode={ fileMode: 0o644, dirMode: 0o755 }]
- * @param {number} mode.dirMode
- * @param {number} mode.fileMode
+ * @param {object} [modes={ fileMode: 0o644, dirMode: 0o755 }]
+ * @param {number} modes.dirMode
+ * @param {number} modes.fileMode
  * @return {Promise<void>}
  * @alias module:storage.crashSafeWriteFileLinesAsync
  */
-const crashSafeWriteFileLinesAsync = async (filename, lines, mode = { fileMode: DEFAULT_FILE_MODE, dirMode: DEFAULT_DIR_MODE }) => {
+const crashSafeWriteFileLinesAsync = async (filename, lines, modes = { fileMode: DEFAULT_FILE_MODE, dirMode: DEFAULT_DIR_MODE }) => {
   const tempFilename = filename + '~'
 
-  await flushToStorageAsync({ filename: path.dirname(filename), isDir: true, mode: mode.dirMode })
+  await flushToStorageAsync({ filename: path.dirname(filename), isDir: true, mode: modes.dirMode })
 
   const exists = await existsAsync(filename)
-  if (exists) await flushToStorageAsync({ filename, mode: mode.fileMode })
+  if (exists) await flushToStorageAsync({ filename, mode: modes.fileMode })
 
-  await writeFileLinesAsync(tempFilename, lines, mode.fileMode)
+  await writeFileLinesAsync(tempFilename, lines, modes.fileMode)
 
-  await flushToStorageAsync({ filename: tempFilename, mode: mode.fileMode })
+  await flushToStorageAsync({ filename: tempFilename, mode: modes.fileMode })
 
   await renameAsync(tempFilename, filename)
 
-  await flushToStorageAsync({ filename: path.dirname(filename), isDir: true, mode: mode.dirMode })
+  await flushToStorageAsync({ filename: path.dirname(filename), isDir: true, mode: modes.dirMode })
 }
 
 /**
diff --git a/test/persistence.async.test.js b/test/persistence.async.test.js
index 4a6987f..7473a7c 100755
--- a/test/persistence.async.test.js
+++ b/test/persistence.async.test.js
@@ -1002,13 +1002,12 @@ describe('Persistence async', function () {
 
 const getMode = async path => {
   const { mode } = await fs.lstat(path)
-  const octalString = mode.toString('8')
-  return parseInt(octalString.substring(octalString.length - 4), '8')
+  return mode & 0o777
 }
 
 const testPermissions = async (db, fileMode, dirMode) => {
-  assert.equal(db.persistence.mode.fileMode, fileMode)
-  assert.equal(db.persistence.mode.dirMode, dirMode)
+  assert.equal(db.persistence.modes.fileMode, fileMode)
+  assert.equal(db.persistence.modes.dirMode, dirMode)
   await db.loadDatabaseAsync()
   assert.equal(await getMode(db.filename), fileMode)
   assert.equal(await getMode(path.dirname(db.filename)), dirMode)
@@ -1034,6 +1033,10 @@ const testPermissions = async (db, fileMode, dirMode) => {
 describe('permissions', function () {
   const testDb = 'workspace/permissions/test.db'
 
+  before('check OS', function () {
+    if (process.platform === 'win32' || process.platform === 'win64') this.skip()
+  })
+
   beforeEach('cleanup', async () => {
     try {
       await fs.chmod(path.dirname(testDb), 0o755)
@@ -1059,21 +1062,21 @@ describe('permissions', function () {
   it('Setting only fileMode', async () => {
     const FILE_MODE = 0o600
     const DIR_MODE = 0o755
-    const db = new Datastore({ filename: testDb, mode: { fileMode: FILE_MODE } })
+    const db = new Datastore({ filename: testDb, modes: { fileMode: FILE_MODE } })
     await testPermissions(db, FILE_MODE, DIR_MODE)
   })
 
   it('Setting only dirMode', async () => {
     const FILE_MODE = 0o644
     const DIR_MODE = 0o700
-    const db = new Datastore({ filename: testDb, mode: { dirMode: DIR_MODE } })
+    const db = new Datastore({ filename: testDb, modes: { dirMode: DIR_MODE } })
     await testPermissions(db, FILE_MODE, DIR_MODE)
   })
 
   it('Setting fileMode & dirMode', async () => {
     const FILE_MODE = 0o600
     const DIR_MODE = 0o700
-    const db = new Datastore({ filename: testDb, mode: { dirMode: DIR_MODE, fileMode: FILE_MODE } })
+    const db = new Datastore({ filename: testDb, modes: { dirMode: DIR_MODE, fileMode: FILE_MODE } })
     await testPermissions(db, FILE_MODE, DIR_MODE)
   })
 })
diff --git a/typings-tests.ts b/typings-tests.ts
index 7d3b574..910c3f2 100644
--- a/typings-tests.ts
+++ b/typings-tests.ts
@@ -23,7 +23,7 @@ db.loadDatabase((err: Error | null) => {
 })
 
 // Type 3: Persistent datastore with automatic loading
-db = new Datastore({ filename: 'path/to/datafile_2', autoload: true })
+db = new Datastore({ filename: 'path/to/datafile_2', autoload: true, modes: {fileMode: 0o644, dirMode: 0o755} })
 // You can issue commands right away
 
 // Of course you can create multiple datastores if you need several