diff --git a/chrome/content/zotero/xpcom/sync.js b/chrome/content/zotero/xpcom/sync.js
index 98eeaebd3..c74800104 100644
--- a/chrome/content/zotero/xpcom/sync.js
+++ b/chrome/content/zotero/xpcom/sync.js
@@ -457,6 +457,7 @@ Zotero.Sync.Runner = new function () {
 	
 	this.reset = function () {
 		_queue = [];
+		_running = false;
 	}