diff --git a/freebsd/resources/switch/source-permissions.sh b/freebsd/resources/switch/source-permissions.sh
index 74d7bb6..1872b59 100755
--- a/freebsd/resources/switch/source-permissions.sh
+++ b/freebsd/resources/switch/source-permissions.sh
@@ -1,3 +1,5 @@
+#!/bin/sh
+
 #setup owner and group, permissions and sticky
 chown -R www:www /usr/local/freeswitch
 chmod -R ug+rw /usr/local/freeswitch