diff --git a/config/docker/danbooru-ci b/config/docker/danbooru-ci
index b2780304c..26c64479e 100644
--- a/config/docker/danbooru-ci
+++ b/config/docker/danbooru-ci
@@ -25,5 +25,6 @@ RUN sed -i'' -e 's/run -it/run -i/' /usr/local/bin/circleci
 
 USER danbooru
 RUN git reset --hard master
+RUN git clean --force
 RUN gem install bundler --version $BUNDLER_VERSION
 RUN bundle install > /dev/null
diff --git a/test/functional/posts_controller_test.rb b/test/functional/posts_controller_test.rb
index a54f69f13..0e660d49d 100644
--- a/test/functional/posts_controller_test.rb
+++ b/test/functional/posts_controller_test.rb
@@ -220,7 +220,7 @@ class PostsControllerTest < ActionDispatch::IntegrationTest
 
       context "in api responses" do
         should "not include restricted attributes" do
-          as(@user) { @post.update(tag_string: "loli") }
+          Post.any_instance.stubs(:visible?).returns(false)
           get_auth post_path(@post), @user, as: :json
 
           assert_response :success