diff --git a/lib/proposals_discussion_plugin/proposal_task.rb b/lib/proposals_discussion_plugin/proposal_task.rb
index eb8030b..f20fe5a 100644
--- a/lib/proposals_discussion_plugin/proposal_task.rb
+++ b/lib/proposals_discussion_plugin/proposal_task.rb
@@ -301,7 +301,7 @@ class ProposalsDiscussionPlugin::ProposalTask < Task
   end
 
   def proposal_source
-    article[:name]
+    article_parent.name
   end
 
   protected
--
libgit2 0.21.2