diff --git a/.gitignore b/.gitignore
index b7faf40..2ed2400 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,6 @@
+# Custom
+dev-tools/
+
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[codz]