diff --git a/chrome/content/zotero/xpcom/data/collection.js b/chrome/content/zotero/xpcom/data/collection.js
index 8f501aa48..b9f68acd3 100644
--- a/chrome/content/zotero/xpcom/data/collection.js
+++ b/chrome/content/zotero/xpcom/data/collection.js
@@ -1497,5 +1497,5 @@ Zotero.Collection.prototype._refreshChildCollections = function () {
 
 
 Zotero.Collection.prototype._generateKey = function () {
-	return Zotero.Utilites.generateObjectKey();
+	return Zotero.Utilities.generateObjectKey();
 }
diff --git a/chrome/content/zotero/xpcom/data/creator.js b/chrome/content/zotero/xpcom/data/creator.js
index 738e98d7c..3d5d4ca91 100644
--- a/chrome/content/zotero/xpcom/data/creator.js
+++ b/chrome/content/zotero/xpcom/data/creator.js
@@ -552,7 +552,7 @@ Zotero.Creator.prototype._checkValue = function (field, value) {
 
 
 Zotero.Creator.prototype._generateKey = function () {
-	return Zotero.Utilites.generateObjectKey();
+	return Zotero.Utilities.generateObjectKey();
 }
 
 
diff --git a/chrome/content/zotero/xpcom/data/tag.js b/chrome/content/zotero/xpcom/data/tag.js
index 5aaaaf099..71bb53bd3 100644
--- a/chrome/content/zotero/xpcom/data/tag.js
+++ b/chrome/content/zotero/xpcom/data/tag.js
@@ -773,6 +773,6 @@ Zotero.Tag.prototype._prepFieldChange = function (field) {
 
 
 Zotero.Tag.prototype._generateKey = function () {
-	return Zotero.Utilites.generateObjectKey();
+	return Zotero.Utilities.generateObjectKey();
 }