diff -r c5a397f57d65 -r 0edff67b472d app/ghop/models/work_submission.py
--- a/app/ghop/models/work_submission.py	Mon May 25 23:42:56 2009 +0200
+++ b/app/ghop/models/work_submission.py	Mon May 25 23:45:20 2009 +0200
@@ -41,7 +41,7 @@
   """
 
   #: Task to which this work was submitted
-  task = db.ReferenceProperty(reference_class=ghop.models.task.Task,
+  task = db.ReferenceProperty(reference_class=ghop.models.task.GHOPTask,
                               required=True,
                               collection_name='work_submissions')