diff --git a/actionview/lib/action_view/helpers/url_helper.rb b/actionview/lib/action_view/helpers/url_helper.rb
index 8b78bd32e05c5b29740e3f93bb34f0b22ddab5e4..56dd7a4390d735e61353a4ea112b77a292cf9cdc 100644
--- a/actionview/lib/action_view/helpers/url_helper.rb
+++ b/actionview/lib/action_view/helpers/url_helper.rb
@@ -314,8 +314,8 @@ def button_to(name = nil, options = nil, html_options = nil, &block)
 
         inner_tags = method_tag.safe_concat(button).safe_concat(request_token_tag)
         if params
-          params.each do |name, value|
-            inner_tags.safe_concat tag(:input, type: "hidden", name: name, value: value.to_param)
+          params.each do |param_name, value|
+            inner_tags.safe_concat tag(:input, type: "hidden", name: param_name, value: value.to_param)
           end
         end
         content_tag('form', content_tag('div', inner_tags), form_options)