diff --git a/chrome/content/zotero/xpcom/data/item.js b/chrome/content/zotero/xpcom/data/item.js
index 1bf61628a..dfada89f8 100644
--- a/chrome/content/zotero/xpcom/data/item.js
+++ b/chrome/content/zotero/xpcom/data/item.js
@@ -4196,7 +4196,7 @@ Zotero.Item.prototype.fromJSON = function (json) {
 		case 'mtime':
 		// Handled below
 		case 'collections':
-		case 'parentKey':
+		case 'parentItem':
 		case 'deleted':
 		case 'inPublications':
 			break;