diff --git a/debian/resources/switch/source-release.sh b/debian/resources/switch/source-release.sh
index d3465f4..bb7d88e 100755
--- a/debian/resources/switch/source-release.sh
+++ b/debian/resources/switch/source-release.sh
@@ -106,6 +106,7 @@ patch -u /usr/src/freeswitch/src/mod/databases/mod_pgsql/mod_pgsql.c -i /usr/src
 
 # enable required modules
 #sed -i /usr/src/freeswitch/modules.conf -e s:'#applications/mod_avmd:applications/mod_avmd:'
+sed -i /usr/src/freeswitch/modules.conf -e s:'#applications/mod_av:formats/mod_av:'
 sed -i /usr/src/freeswitch/modules.conf -e s:'#applications/mod_callcenter:applications/mod_callcenter:'
 sed -i /usr/src/freeswitch/modules.conf -e s:'#applications/mod_cidlookup:applications/mod_cidlookup:'
 sed -i /usr/src/freeswitch/modules.conf -e s:'#applications/mod_memcache:applications/mod_memcache:'