diff --git a/klaus/contrib/wsgi_autoreloading.py b/klaus/contrib/wsgi_autoreloading.py
index 74215277..40dce1cb 100644
--- a/klaus/contrib/wsgi_autoreloading.py
+++ b/klaus/contrib/wsgi_autoreloading.py
@@ -6,10 +6,6 @@
 from klaus import make_app
 
 
-def is_hidden_folder(f):
-    return f[0] == '.'
-
-
 # Shared state between poller and application wrapper
 class S:
     #: the real WSGI app