diff --git a/config/feature_flags/development/remove_startup_css.yml b/config/feature_flags/development/remove_startup_css.yml
index 91e78682755c6acd5fc1cae272cc2d9c6e45d915..18ed4d2f4f98dbe4968a0e2d0a288b12bb51b974 100644
--- a/config/feature_flags/development/remove_startup_css.yml
+++ b/config/feature_flags/development/remove_startup_css.yml
@@ -5,4 +5,4 @@ rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/407140
 milestone: '15.11'
 type: development
 group: group::project management
-default_enabled: false
+default_enabled: true