diff --git a/chrome/content/zotero/xpcom/sync/syncEventListeners.js b/chrome/content/zotero/xpcom/sync/syncEventListeners.js
index 4b3f3e4b3..377a421ba 100644
--- a/chrome/content/zotero/xpcom/sync/syncEventListeners.js
+++ b/chrome/content/zotero/xpcom/sync/syncEventListeners.js
@@ -111,7 +111,7 @@ Zotero.Sync.EventListeners.AutoSyncListener = {
 	
 	register: function () {
 		this._observerID = Zotero.Notifier.registerObserver(this, false, 'autosync');
-		Zotero.Sync.Streamer.init();
+		Zotero.uiReadyPromise.then(() => Zotero.Sync.Streamer.init());
 	},
 	
 	notify: function (event, type, ids, extraData) {