diff --git a/chrome/locale/en-US/zotero/standalone/standalone.dtd b/chrome/locale/en-US/zotero/standalone/standalone.dtd
index 5746b2a5e5..e6fe217f3a 100644
--- a/chrome/locale/en-US/zotero/standalone/standalone.dtd
+++ b/chrome/locale/en-US/zotero/standalone/standalone.dtd
@@ -90,3 +90,5 @@
 <!ENTITY helpFeedbackPage.accesskey  "S">
 <!ENTITY helpReportErrors.label      "Report Errors to Zotero…">
 <!ENTITY helpReportErrors.accesskey  "R">
+<!ENTITY helpCheckForUpdates.label      "Check for Updates…">
+<!ENTITY helpCheckForUpdates.accesskey  "U">