diff --git a/actionpack/lib/action_view/erb/util.rb b/actionpack/lib/action_view/erb/util.rb
index f767a5e27e..aef859b3ac 100644
--- a/actionpack/lib/action_view/erb/util.rb
+++ b/actionpack/lib/action_view/erb/util.rb
@@ -23,6 +23,7 @@ class ERB
       end
     end
 
+    undef :h
     alias h html_escape
 
     module_function :html_escape