Ticket #14507: 14507.diff

django/contrib/staticfiles/views.py

@@ -41 +41 @@
     template hardcoded below, but if you'd like to override it, you can create
     a template called ``static/directory_index.html``.
     """
-    if settings.DEBUG:
+    if not settings.DEBUG:
         raise ImproperlyConfigured("The view to serve static files can only "
                                    "be used if the DEBUG setting is True")
     if not document_root: