1 files changed, 2 insertions, 2 deletions
diff --git a/activemodel/lib/active_model/validations/with.rb b/activemodel/lib/active_model/validations/with.rb
index 626e9d5731..8d521173c6 100644
--- a/activemodel/lib/active_model/validations/with.rb
+++ b/activemodel/lib/active_model/validations/with.rb
@@ -48,9 +48,9 @@ module ActiveModel
       #     end
       #   end
       #
-      def validates_with(*args)
+      def validates_with(*args, &block)
         options = args.extract_options!
-        args.each { |klass| validate(klass.new(options), options) }
+        args.each { |klass| validate(klass.new(options, &block), options) }
       end
     end
   end