diff --git a/plugins/community_track/lib/community_track_plugin/track.rb b/plugins/community_track/lib/community_track_plugin/track.rb
index 7f56570..4df5ad6 100644
--- a/plugins/community_track/lib/community_track_plugin/track.rb
+++ b/plugins/community_track/lib/community_track_plugin/track.rb
@@ -65,7 +65,7 @@ class CommunityTrackPlugin::Track < Folder
 
   def category_name
     category = categories.first
-    category ? category.top_ancestor.name : ''
+    category ? (category.top_ancestor.nil? ? '' : category.top_ancestor.name) : ''
   end
 
   def to_html(options = {})
--
libgit2 0.21.2