diff --git a/apps/mobile_push/mobile_push.dsm b/apps/mobile_push/mobile_push.dsm
index 03335131..824126b4 100644
--- a/apps/mobile_push/mobile_push.dsm
+++ b/apps/mobile_push/mobile_push.dsm
@@ -196,6 +196,7 @@ transition "timer hit" WAITING - timer(#id==1) / {
 
 transition "CANCEL received" WAITING - hangup / {
   subscription.remove($r.handle);
+  dlg.reply(487, "Request Terminated");
   stop(false);
 } -> END;