diff --git a/chrome/content/zotero/xpcom/schema.js b/chrome/content/zotero/xpcom/schema.js
index b5fc28f14..62d0b6153 100644
--- a/chrome/content/zotero/xpcom/schema.js
+++ b/chrome/content/zotero/xpcom/schema.js
@@ -1962,9 +1962,9 @@ Zotero.Schema = new function(){
 						var rows = Zotero.DB.query("SELECT * FROM itemData WHERE valueID NOT IN (SELECT valueID FROM itemDataValues)");
 						if (rows) {
 							for (var j=0; j<rows.length; j++) {
-								for (var j=0; j<values.length; j++) {
+								for (var k=0; k<values.length; k++) {
 									var valueID = Zotero.ID.get('itemDataValues');
-									Zotero.DB.query("INSERT INTO itemDataValues VALUES (?,?)", [valueID, values[j]]);
+									Zotero.DB.query("INSERT INTO itemDataValues VALUES (?,?)", [valueID, values[k]]);
 									Zotero.DB.query("UPDATE itemData SET valueID=? WHERE itemID=? AND fieldID=?", [valueID, rows[j]['itemID'], rows[j]['fieldID']]);
 								}
 							}
diff --git a/chrome/content/zotero/xpcom/utilities.js b/chrome/content/zotero/xpcom/utilities.js
index bf774cd08..3e62855fe 100644
--- a/chrome/content/zotero/xpcom/utilities.js
+++ b/chrome/content/zotero/xpcom/utilities.js
@@ -1090,15 +1090,15 @@ Zotero.Utilities = {
 				// document, we need to use selectNodes
 				if(namespaces) {
 					var ieNamespaces = [];
-					for(var i in namespaces) {
-						if(!i) continue;
-						ieNamespaces.push('xmlns:'+i+'="'+Zotero.Utilities.htmlSpecialChars(namespaces[i])+'"');
+					for(var j in namespaces) {
+						if(!j) continue;
+						ieNamespaces.push('xmlns:'+j+'="'+Zotero.Utilities.htmlSpecialChars(namespaces[j])+'"');
 					}
 					rootDoc.setProperty("SelectionNamespaces", ieNamespaces.join(" "));
 				}
 				var nodes = element.selectNodes(xpath);
-				for(var i=0; i<nodes.length; i++) {
-					results.push(nodes[i]);
+				for(var j=0; j<nodes.length; j++) {
+					results.push(nodes[j]);
 				}
 			} else {
 				throw new Error("XPath functionality not available");