diff --git a/activerecord/lib/active_record/scoping/named.rb b/activerecord/lib/active_record/scoping/named.rb
index 20c8e4b0f7..2f266eff79 100644
--- a/activerecord/lib/active_record/scoping/named.rb
+++ b/activerecord/lib/active_record/scoping/named.rb
@@ -171,8 +171,8 @@ module ActiveRecord
         #   Article.published.featured.latest_article
         #   Article.featured.titles
 
-        def scope(name, scope_options = {})
-          extension = Module.new(&Proc.new) if block_given?
+        def scope(name, scope_options = {}, &block)
+          extension = Module.new(&block) if block
 
           singleton_class.send(:define_method, name) do |*args|
             options = scope_options.respond_to?(:call) ? unscoped { scope_options.call(*args) } : scope_options