diff --git a/django/db/backends/__init__.py b/django/db/backends/__init__.py
index 68927de182..f25a65bafb 100644
--- a/django/db/backends/__init__.py
+++ b/django/db/backends/__init__.py
@@ -6,7 +6,7 @@ except ImportError:
     from django.utils._threading_local import local
 try:
     set
-except NameError
+except NameError:
     # Python 2.3 compat
     from sets import Set as set