diff --git a/server/backend/internal/httpapi/manage/templates.go b/server/backend/internal/httpapi/manage/templates.go
index 164bfcd..6a8beed 100644
--- a/server/backend/internal/httpapi/manage/templates.go
+++ b/server/backend/internal/httpapi/manage/templates.go
@@ -1162,7 +1162,7 @@ function sendDisplayCmd(state) {
 
 // ─── Schedule control ────────────────────────────────────────────────────────
 function saveSchedule() {
-  var slug = {{.Screen.Slug | printf "%q"}};
+  var slug = SCREEN_SLUG;
   var enabled = document.getElementById('schedule-enabled').checked;
   var onTime  = document.getElementById('power-on-time').value;
   var offTime = document.getElementById('power-off-time').value;