diff --git a/transfer.py b/transfer.py
index 80a0d61284c9c7ee8ffac090cf4931c3f2aa6a34..67b3e190175a030b9fd162b5bce72e725c76ec0d 100644
--- a/transfer.py
+++ b/transfer.py
@@ -63,6 +63,10 @@ print("Connected to Trinkey! Transfering files...")
 
 shutil.rmtree(os.path.join('src', '__pycache__'), True)
 shutil.rmtree(os.path.join('support', '__pycache__'), True)
+shutil.rmtree(os.path.join('src', '.mypy_cache'), True)
+shutil.rmtree(os.path.join('support', '.mypy_cache'), True)
+
+
 shutil.rmtree(disk, True)
 
 shutil.copytree('src', os.path.join(disk, 'src'), dirs_exist_ok=True)