diff --git a/modules/rhizo_base/templates/vars.xml.erb b/modules/rhizo_base/templates/vars.xml.erb
index 29ca29b..342b674 100644
--- a/modules/rhizo_base/templates/vars.xml.erb
+++ b/modules/rhizo_base/templates/vars.xml.erb
@@ -146,8 +146,8 @@
        127 - BV32
 
   -->
-  <X-PRE-PROCESS cmd="set" data="global_codec_prefs=G729,AMR,GSM,PCMA"/>
-  <X-PRE-PROCESS cmd="set" data="outbound_codec_prefs=G729,AMR,GSM"/>
+  <X-PRE-PROCESS cmd="set" data="global_codec_prefs=OPUS,G729,AMR,GSM,PCMA"/>
+  <X-PRE-PROCESS cmd="set" data="outbound_codec_prefs=OPUS,G729,AMR,GSM"/>
 
   <!--
       xmpp_client_profile and xmpp_server_profile