diff --git a/mypy.ini b/mypy.ini
index ae7be5e..7e563e6 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -5,6 +5,8 @@
 python_version=3.6
 platform=linux
 
+mypy_path=src
+
 show_column_numbers=True
 
 # show error messages from unrelated files