diff --git a/bin/tamir_grub_plymouth b/bin/tamir_grub_plymouth
index 89da62c4f..24a4089d7 100755
--- a/bin/tamir_grub_plymouth
+++ b/bin/tamir_grub_plymouth
@@ -1 +1,2 @@
+#!/bin/sh
 sudo sed -i 's#^\(GRUB_CMDLINE_LINUX_DEFAULT="quiet\)"$#\1 rhgb"#' /etc/default/grub/grub.default