diff --git a/slither/__main__.py b/slither/__main__.py
index 5a0563fa3..0a26f8ff6 100644
--- a/slither/__main__.py
+++ b/slither/__main__.py
@@ -6,7 +6,6 @@ import inspect
 import json
 import logging
 import os
-import subprocess
 import sys
 import traceback
 
@@ -22,7 +21,8 @@ from slither.slither import Slither
 from slither.utils.colors import red, yellow, set_colorization_enabled
 from slither.utils.command_line import (output_detectors, output_results_to_markdown,
                                         output_detectors_json, output_printers,
-                                        output_to_markdown, output_wiki)
+                                        output_to_markdown, output_wiki, defaults_flag_in_config,
+                                        read_config_file)
 from crytic_compile import is_supported
 from slither.exceptions import SlitherException
 
@@ -253,30 +253,6 @@ def parse_filter_paths(args):
         return args.filter_paths.split(',')
     return []
 
-# Those are the flags shared by the command line and the config file
-defaults_flag_in_config = {
-    'detectors_to_run': 'all',
-    'printers_to_run': None,
-    'detectors_to_exclude': None,
-    'exclude_informational': False,
-    'exclude_low': False,
-    'exclude_medium': False,
-    'exclude_high': False,
-    'solc': 'solc',
-    'solc_args': None,
-    'disable_solc_warnings': False,
-    'json': None,
-    'truffle_version': None,
-    'disable_color': False,
-    'filter_paths': None,
-    'truffle_ignore_compile': False,
-    'truffle_build_directory': 'build/contracts',
-    'embark_ignore_compile': False,
-    'embark_overwrite_config': False,
-    # debug command
-    'legacy_ast': False,
-    'ignore_return_value': False
-    }
 
 def parse_args(detector_classes, printer_classes):
     parser = argparse.ArgumentParser(description='Slither. For usage information, see https://github.com/crytic/slither/wiki/Usage',
@@ -435,18 +411,7 @@ def parse_args(detector_classes, printer_classes):
 
     args = parser.parse_args()
 
-    if os.path.isfile(args.config_file):
-        try:
-            with open(args.config_file) as f:
-                config = json.load(f)
-                for key, elem in config.items():
-                    if key not in defaults_flag_in_config:
-                        logger.info(yellow('{} has an unknown key: {} : {}'.format(args.config_file, key, elem)))
-                        continue
-                    if getattr(args, key) == defaults_flag_in_config[key]:
-                        setattr(args, key, elem)
-        except json.decoder.JSONDecodeError as e:
-            logger.error(red('Impossible to read {}, please check the file {}'.format(args.config_file, e)))
+    read_config_file(args)
 
     return args
 
diff --git a/slither/utils/command_line.py b/slither/utils/command_line.py
index d1a495a23..04bf812d9 100644
--- a/slither/utils/command_line.py
+++ b/slither/utils/command_line.py
@@ -1,9 +1,53 @@
 import json
+import os
+import logging
 from collections import defaultdict
 from prettytable import PrettyTable
-
+from .colors import yellow, red
 from slither.detectors.abstract_detector import classification_txt
 
+logger = logging.getLogger("Slither")
+
+# Those are the flags shared by the command line and the config file
+defaults_flag_in_config = {
+    'detectors_to_run': 'all',
+    'printers_to_run': None,
+    'detectors_to_exclude': None,
+    'exclude_informational': False,
+    'exclude_low': False,
+    'exclude_medium': False,
+    'exclude_high': False,
+    'solc': 'solc',
+    'solc_args': None,
+    'disable_solc_warnings': False,
+    'json': None,
+    'truffle_version': None,
+    'disable_color': False,
+    'filter_paths': None,
+    'truffle_ignore_compile': False,
+    'truffle_build_directory': 'build/contracts',
+    'embark_ignore_compile': False,
+    'embark_overwrite_config': False,
+    # debug command
+    'legacy_ast': False,
+    'ignore_return_value': False
+    }
+
+def read_config_file(args):
+    if os.path.isfile(args.config_file):
+        try:
+            with open(args.config_file) as f:
+                config = json.load(f)
+                for key, elem in config.items():
+                    if key not in defaults_flag_in_config:
+                        logger.info(yellow('{} has an unknown key: {} : {}'.format(args.config_file, key, elem)))
+                        continue
+                    if getattr(args, key) == defaults_flag_in_config[key]:
+                        setattr(args, key, elem)
+        except json.decoder.JSONDecodeError as e:
+            logger.error(red('Impossible to read {}, please check the file {}'.format(args.config_file, e)))
+
+
 def output_to_markdown(detector_classes, printer_classes, filter_wiki):
 
     def extract_help(cls):
diff --git a/utils/slither_format/__main__.py b/utils/slither_format/__main__.py
index 992969dc4..c3e01bf76 100644
--- a/utils/slither_format/__main__.py
+++ b/utils/slither_format/__main__.py
@@ -1,13 +1,13 @@
-import os, sys
+import sys
 import argparse
 from slither import Slither
-from slither.utils.colors import red
+from slither.utils.command_line import read_config_file
 import logging
 from .slither_format import slither_format
 from crytic_compile import cryticparser
 
 logging.basicConfig()
-logging.getLogger("Slither").setLevel(logging.INFO)
+logger = logging.getLogger("Slither").setLevel(logging.INFO)
 
 # Slither detectors for which slither-format currently works
 available_detectors = ["unused-state",
@@ -40,6 +40,14 @@ def parse_args():
                         help='Do not generate patch files',
                         action='store_true',
                         default=False)
+
+
+    parser.add_argument('--config-file',
+                            help='Provide a config file (default: slither.config.json)',
+                            action='store',
+                            dest='config_file',
+                            default='slither.config.json')
+
     
     group_detector = parser.add_argument_group('Detectors')
     group_detector.add_argument('--detect',
@@ -75,6 +83,9 @@ def main():
     # Parse all arguments
     args = parse_args()
 
+    read_config_file(args)
+
+
     # Perform slither analysis on the given filename
     slither = Slither(args.filename, **vars(args))