diff --git a/chrome/content/zotero/xpcom/data/itemFields.js b/chrome/content/zotero/xpcom/data/itemFields.js
index 009c5438ac..450ad84b44 100644
--- a/chrome/content/zotero/xpcom/data/itemFields.js
+++ b/chrome/content/zotero/xpcom/data/itemFields.js
@@ -432,7 +432,7 @@ Zotero.ItemFields = new function() {
 				return Zotero.dir;
 		}
 		
-		var fieldName = this.getName(fieldName);
+		var fieldName = this.getName(field);
 		if (fieldName) {
 			let baseField = this.getBaseIDFromTypeAndField(itemTypeID, fieldName);
 			if (baseField) {