Index: /trunk/src/VBox/Installer/darwin/Makefile.kmk
===================================================================
--- /trunk/src/VBox/Installer/darwin/Makefile.kmk	(revision 54682)
+++ /trunk/src/VBox/Installer/darwin/Makefile.kmk	(revision 54683)
@@ -769,4 +769,5 @@
 		--install-location /Applications/ \
 		--ownership preserve \
+		$(if-expr defined(VBOX_NOT_OSX_105),--preserve-xattr,) \
 		$(if $(VBOX_MACOSX_INSTALLER_SIGN),--sign "$(VBOX_MACOSX_INSTALLER_SIGN)",) \
 		$@