diff --git a/static/js/feature_flags.js b/static/js/feature_flags.js
index f1fdeb31cd..c299d462d8 100644
--- a/static/js/feature_flags.js
+++ b/static/js/feature_flags.js
@@ -43,7 +43,10 @@ exports.left_side_userlist = _.contains(['customer7.invalid'], page_params.domai
 // Still very beta:
 exports.fade_users_when_composing = page_params.staging || is_customer4;
 exports.use_socket = false;
-exports.clicking_notification_causes_narrow = page_params.staging || _.contains(['customer25.invalid'], page_params.domain);
+
+exports.clicking_notification_causes_narrow = page_params.staging || is_customer4 ||
+    _.contains(['customer25.invalid'], page_params.domain);
+
 exports.show_digest_email_setting = page_params.staging;
 
 var zoom_realms = [