diff --git a/mozilla/browser/base/content/baseMenuOverlay.xul b/mozilla/browser/base/content/baseMenuOverlay.xul
index c19544551ae..e277970b297 100644
--- a/mozilla/browser/base/content/baseMenuOverlay.xul
+++ b/mozilla/browser/base/content/baseMenuOverlay.xul
@@ -112,7 +112,7 @@
 # ...Map Cmd+Shift+/, show Cmd+?
 # (that's for en-US, it might be different for other keyboard layouts)
         <key id="key_openHelpMac"
-             oncommand="openHelp('firefox-help');"
+             oncommand="openHelp('firefox-help', 'chrome://browser/locale/help/help.rdf');"
              key="&openHelpMac2.commandkey;"
              modifiers="&openHelpMac2.modifiers;"/>
         <key id="key_openHelpMacFrontend"