diff --git a/test/functional/posts_controller_test.rb b/test/functional/posts_controller_test.rb
index af8916cd3..c1d1df1bf 100644
--- a/test/functional/posts_controller_test.rb
+++ b/test/functional/posts_controller_test.rb
@@ -106,6 +106,7 @@ class PostsControllerTest < ActionController::TestCase
 
     context "revert action" do
       setup do
+        @post.stubs(:merge_version?).returns(false)
         @post.update_attributes(:tag_string => "zzz")
       end