Missed comma.

lib/api/projects.rb

@@ -42,7 +42,7 @@ module Gitlab
                                     :issues_enabled,
                                     :wall_enabled,
                                     :merge_requests_enabled,
-                                    :wiki_enabled
+                                    :wiki_enabled,
                                     :namespace_id]
         @project = ::Projects::CreateContext.new(current_user, attrs).execute
         if @project.saved?