diff --git a/radicale/__init__.py b/radicale/__init__.py
index aa0e5cd..06c867a 100644
--- a/radicale/__init__.py
+++ b/radicale/__init__.py
@@ -340,7 +340,7 @@ class Application(object):
                user):
         """Manage DELETE request."""
         if not len(write_collections):
-            return return NOT_ALLOWED
+            return NOT_ALLOWED
 
         collection = write_collections[0]