diff --git a/mozilla/xpfe/communicator/resources/locale/en-US/mac/platformCommunicatorOverlay.dtd b/mozilla/xpfe/communicator/resources/locale/en-US/mac/platformCommunicatorOverlay.dtd
index b4dd0b8b016..632768be589 100644
--- a/mozilla/xpfe/communicator/resources/locale/en-US/mac/platformCommunicatorOverlay.dtd
+++ b/mozilla/xpfe/communicator/resources/locale/en-US/mac/platformCommunicatorOverlay.dtd
@@ -12,3 +12,5 @@
 
 <!ENTITY redoCmd.label			"Redo">  
 <!ENTITY redoCmd.key			"Z">  
+
+<!ENTITY historyCmd.key   "H">