diff --git a/build/mac/NGLayoutBuildList.pm b/build/mac/NGLayoutBuildList.pm
index a14146326cdb..2250e479fa01 100644
--- a/build/mac/NGLayoutBuildList.pm
+++ b/build/mac/NGLayoutBuildList.pm
@@ -1544,7 +1544,7 @@ sub BuildAppRunner()
 	_copy( $cmd_file_path . "Mozilla_Messenger", $dist_dir . $cmd_file );
 	MacPerl::SetFileInfo("MOZZ", "CMDL", $dist_dir . $cmd_file);
 
-	$cmd_file = "Mozilla Preference";
+	$cmd_file = "Mozilla Preferences";
 	_copy( $cmd_file_path . "Mozilla_Preference", $dist_dir . $cmd_file );
 	MacPerl::SetFileInfo("MOZZ", "CMDL", $dist_dir . $cmd_file);
 }