diff --git a/lib/jsduck/merger.rb b/lib/jsduck/merger.rb
index 61a95590861f30d35ec344d3102b24798facbfba..4ad044c844c388aa52b9d0d19b3ce6d6699dc5a9 100644
--- a/lib/jsduck/merger.rb
+++ b/lib/jsduck/merger.rb
@@ -38,7 +38,6 @@ module JsDuck
         :alternateClassNames => [],
         :requires => [],
         :uses => [],
-        :singleton => false,
       })
 
       h[:members] = []