diff --git a/mozilla/build/mac/NGLayoutBuildList.pm b/mozilla/build/mac/NGLayoutBuildList.pm
index c7ed0c7be4b..b391b075b36 100644
--- a/mozilla/build/mac/NGLayoutBuildList.pm
+++ b/mozilla/build/mac/NGLayoutBuildList.pm
@@ -448,6 +448,7 @@ sub MakeResourceAliases()
 		my($addressbook_chrome_dir) = "$chrome_dir" . "Addressbook";
 		
 		_InstallResources(":mozilla:mailnews:base:resources:content:MANIFEST",			 "$messenger_chrome_dir:content:default:", 0);
+		_InstallResources(":mozilla:mailnews:base:resources:content:mac:MANIFEST",			 "$messenger_chrome_dir:content:default:", 0);
 		_InstallResources(":mozilla:mailnews:base:resources:skin:MANIFEST",				 "$messenger_chrome_dir:skin:default:", 0);
 		_InstallResources(":mozilla:mailnews:base:resources:locale:en-US:MANIFEST",		 "$messenger_chrome_dir:locale:en-US:", 0);
 		_InstallResources(":mozilla:mailnews:base:prefs:resources:content:MANIFEST",	 "$messenger_chrome_dir:content:default:", 0);