diff --git a/chrome/content/zotero/xpcom/storage/zfs.js b/chrome/content/zotero/xpcom/storage/zfs.js
index 813f04b73..7e00ab2b3 100644
--- a/chrome/content/zotero/xpcom/storage/zfs.js
+++ b/chrome/content/zotero/xpcom/storage/zfs.js
@@ -123,7 +123,6 @@ Zotero.Sync.Storage.Session.ZFS.prototype._getStorageFileInfo = function (item,
 				 		+ " (" + Zotero.Items.getLibraryKeyHash(item) + ")";
 			Zotero.debug(msg, 1);
 			Zotero.debug(req.responseText);
-			Zotero.debug(req.getAllResponseHeaders());
 			Components.utils.reportError(msg);
 			self.onError();
 			return;