diff --git a/lib/pundit/plus.rb b/lib/pundit/plus.rb
index b4701f6..ffa926d 100644
--- a/lib/pundit/plus.rb
+++ b/lib/pundit/plus.rb
@@ -24,7 +24,7 @@ def exception_from(query:)
         "permitted_attributes"
       end
 
-      required = params.require(
+      params.require(
         PolicyFinder.new(record).param_key
       ).permit(
         *send(param_method)