diff --git a/debian/resources/switch/source-sounds.sh b/debian/resources/switch/source-sounds.sh
index 0084728..1917b6c 100644
--- a/debian/resources/switch/source-sounds.sh
+++ b/debian/resources/switch/source-sounds.sh
@@ -1,3 +1,15 @@
+#!/bin/sh
+
+#move to script directory so all relative paths work
+cd "$(dirname "$0")"
+
+#includes
+. ../config.sh
+. ../environment.sh
+
+# change the working directory
+cd /usr/src/freeswitch
+
 # compile and install the sounds
 make sounds-install moh-install
 make hd-sounds-install hd-moh-install