diff --git a/centos/resources/switch/package-permissions.sh b/centos/resources/switch/package-permissions.sh
index 87d81a9..b262606 100755
--- a/centos/resources/switch/package-permissions.sh
+++ b/centos/resources/switch/package-permissions.sh
@@ -1,3 +1,5 @@
+#!/bin/sh
+
 #default permissions
 chown -R freeswitch:daemon /etc/freeswitch
 chown -R freeswitch:daemon /var/lib/freeswitch