diff --git a/app/javascript/entrypoints/ui.js b/app/javascript/entrypoints/ui.js
index 8d5857dcf..a6e1f86a8 100644
--- a/app/javascript/entrypoints/ui.js
+++ b/app/javascript/entrypoints/ui.js
@@ -47,4 +47,6 @@ export const init = async () => {
   });
 };
 
-window.initChatUI = init;
+if (typeof window.chatwootCallback === 'function') {
+  window.chatwootCallback(init);
+}