diff --git a/lib/mocha/any_instance_method.rb b/lib/mocha/any_instance_method.rb
index 305ee2e14..8a3afb3c4 100644
--- a/lib/mocha/any_instance_method.rb
+++ b/lib/mocha/any_instance_method.rb
@@ -16,11 +16,11 @@ def reset_mocha
     def hide_original_method
       if @original_visibility = method_visibility(method)
         begin
-          @original_method = stubbee.instance_method(method)
           if RUBY_V2_PLUS
             @definition_target = PrependedModule.new
             stubbee.__send__ :prepend, @definition_target
           else
+            @original_method = stubbee.instance_method(method)
             if @original_method && @original_method.owner == stubbee
               stubbee.send(:remove_method, method)
             end