diff --git a/lib/travis/features.rb b/lib/travis/features.rb
index 4ed075a1..5b2f82d2 100644
--- a/lib/travis/features.rb
+++ b/lib/travis/features.rb
@@ -123,7 +123,7 @@ module Travis
     end
 
     def owner_key(feature, owner)
-      suffix = owner.class.table_name
+      suffix = owner.class.table_name if owner
       "#{key(feature)}:#{suffix}"
     end