diff --git a/chrome/content/zotero/bindings/tagselector.xml b/chrome/content/zotero/bindings/tagselector.xml
index 326259e9af..8cfe3b6daf 100644
--- a/chrome/content/zotero/bindings/tagselector.xml
+++ b/chrome/content/zotero/bindings/tagselector.xml
@@ -770,7 +770,7 @@
 				<body>
 				<![CDATA[
 					this.onDragOver = function (event) {
-						Zotero.debug(event.dataTransfer.mozTypesAt(0));
+						//Zotero.debug(event.dataTransfer.mozTypesAt(0));
 						if (!event.dataTransfer.getData('zotero/item')) {
 							return;
 						}
