diff --git a/tests/source_unit/README.md b/tests/source_unit/README.md
new file mode 100644
index 000000000..9cf3657e0
--- /dev/null
+++ b/tests/source_unit/README.md
@@ -0,0 +1,3 @@
+# README
+
+Before using this project, run `forge init --no-git --no-commit --force` to initialize submodules
diff --git a/tests/source_unit/lib/forge-std b/tests/source_unit/lib/forge-std
deleted file mode 160000
index eb980e1d4..000000000
--- a/tests/source_unit/lib/forge-std
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit eb980e1d4f0e8173ec27da77297ae411840c8ccb
diff --git a/tests/test_source_unit.py b/tests/test_source_unit.py
index 7b653599e..f979a41ec 100644
--- a/tests/test_source_unit.py
+++ b/tests/test_source_unit.py
@@ -1,5 +1,7 @@
 from slither import Slither
 
+# NB: read tests/source_unit/README.md before using this test
+
 
 def test_contract_info() -> None:
     slither = Slither("./tests/source_unit")