diff --git a/src/spectator/double.cr b/src/spectator/double.cr
index 2991639..8e4237d 100644
--- a/src/spectator/double.cr
+++ b/src/spectator/double.cr
@@ -1,12 +1,10 @@
 module Spectator
   abstract class Double
     macro stub(definition)
-      def {{definition.name.id}}
-        @internal.{{definition.name.id}}
-      end
+      delegate {{definition.name.id}}, to: @internal
 
       private class Internal
-        def {{definition.name.id}}
+        def {{definition.name.id}}({{definition.args.splat}})
           {{definition.block.body}}
         end
       end