diff --git a/pagure/forms.py b/pagure/forms.py
index fe46a8e..b44d10d 100644
--- a/pagure/forms.py
+++ b/pagure/forms.py
@@ -16,7 +16,8 @@ import wtforms
 
 STRICT_REGEX = '^[a-zA-Z0-9-_]+$'
 TAGS_REGEX = '^[a-zA-Z0-9-_, .]+$'
-PROJECT_NAME_REGEX = '^[a-zA-z0-9_][a-zA-Z0-9-_]*/?[a-zA-Z0-9-_]+$'
+PROJECT_NAME_REGEX = '^[a-zA-z0-9_][a-zA-Z0-9-_]*/'\
+    '?[a-zA-z0-9_][a-zA-Z0-9-_]+$'
 
 
 class ProjectFormSimplified(wtf.Form):