diff --git a/mozilla/toolkit/mozapps/update/src/updater/Makefile.in b/mozilla/toolkit/mozapps/update/src/updater/Makefile.in
index 3dc928af64b..1a36050a4ce 100644
--- a/mozilla/toolkit/mozapps/update/src/updater/Makefile.in
+++ b/mozilla/toolkit/mozapps/update/src/updater/Makefile.in
@@ -100,5 +100,8 @@ libs::
 	mkdir -p $(DIST)/bin/updater.app
 	rsync -a --exclude CVS $(srcdir)/macbuild/Contents $(DIST)/bin/updater.app
 	mkdir -p $(DIST)/bin/updater.app/Contents/MacOS
-	mv -f $(DIST)/bin/updater $(DIST)/bin/updater.app/Contents/MacOS
+	# copy and remove to un-symlink (FSCopyObject seems to not copy symlinks)
+	rm -f $(DIST)/bin/updater.app/Contents/MacOS/updater
+	cp -f $(DIST)/bin/updater $(DIST)/bin/updater.app/Contents/MacOS
+	rm -f $(DIST)/bin/updater
 endif