diff --git a/lib/arel/update_manager.rb b/lib/arel/update_manager.rb
index b74e0f2a27..3f6a483751 100644
--- a/lib/arel/update_manager.rb
+++ b/lib/arel/update_manager.rb
@@ -44,9 +44,5 @@ module Arel
       end
       self
     end
-
-    def to_sql
-      visitor.accept @head
-    end
   end
 end