diff --git a/activerecord/lib/active_record/attributes.rb b/activerecord/lib/active_record/attributes.rb
index 5d0405c3bef1b30a3523525216f3d8757c1bb1d0..50a74ab18a26c8b0bf9c9e46ffe202814c6e2905 100644
--- a/activerecord/lib/active_record/attributes.rb
+++ b/activerecord/lib/active_record/attributes.rb
@@ -119,7 +119,7 @@ module ClassMethods
       #
       #   class MoneyType < ActiveRecord::Type::Integer
       #     def cast(value)
-      #       if !value.kind_of(Numeric) && value.include?('$')
+      #       if !value.kind_of?(Numeric) && value.include?('$')
       #         price_in_dollars = value.gsub(/\$/, '').to_f
       #         super(price_in_dollars * 100)
       #       else