diff --git a/mangle.json b/mangle.json
index 1d009545cb..dfbca39c3d 100644
--- a/mangle.json
+++ b/mangle.json
@@ -25,6 +25,7 @@
   "props": {
     "cname": 6,
     "props": {
+      "$__hasScuFromHooks": "__f",
       "$_listeners": "l",
       "$_cleanup": "__c",
       "$__hooks": "__H",