diff --git a/examples/example_with_env_in_settings/app.yml b/examples/example_with_env_in_settings/app.yml
index 2ee85d6..0962a68 100644
--- a/examples/example_with_env_in_settings/app.yml
+++ b/examples/example_with_env_in_settings/app.yml
@@ -15,7 +15,7 @@ automatic_scaling:
   max_num_instances: 2
 skip_files:
 - ^(.*/)?\.dockerignore$
-- ^(.*/)?\yarn-error.log$
+- ^(.*/)?yarn-error\.log$
 - ^(.*/)?\.git$
 - ^(.*/)?\.hg$
 - ^(.*/)?\.svn$