diff --git a/services/sync/modules/service.js b/services/sync/modules/service.js
index fcb8275c4703..85829a00f8a2 100644
--- a/services/sync/modules/service.js
+++ b/services/sync/modules/service.js
@@ -876,6 +876,8 @@ Sync11Service.prototype = {
     Svc.Prefs.set("lastversion", WEAVE_VERSION);
 
     this.identity.deleteSyncCredentials();
+
+    Svc.Obs.notify("weave:service:start-over:finish");
   },
 
   persistLogin: function persistLogin() {