diff --git a/kamailio/presence-role.cfg b/kamailio/presence-role.cfg
index 29ae490..f31824e 100644
--- a/kamailio/presence-role.cfg
+++ b/kamailio/presence-role.cfg
@@ -415,13 +415,14 @@ route[PRESENCE_BINDINGS]
    #!import_file "presence-custom-bindings.cfg"
     
    #!ifndef PRESENCE_CUSTOM_BINDINGS
-   $var(payload) = "{ 'exchange' : 'presence', 'type' : 'topic', 'queue' : 'presence-dialog-MY_HOSTNAME', 'routing' : 'dialog.*.*', 'exclusive' : 0, 'federate' : 1 }";
+   $var(payload) = $_s({ "exchange" : "presence", "type" : "topic", "queue" : "presence-dialog-MY_HOSTNAME", "routing" : "dialog.*.*", "exclusive" : 0, "federate" : 1 });
    kazoo_subscribe("$var(payload)");
+   
 
-   $var(payload) = "{ 'exchange' : 'presence', 'type' : 'topic', 'queue' : 'presence-presence-MY_HOSTNAME', 'routing' : 'update.*.*', 'exclusive' : 0, 'federate' : 1 }";
+   $var(payload) = $_s({ "exchange" : "presence", "type" : "topic", "queue" : "presence-presence-MY_HOSTNAME", "routing" : "update.*.*", "exclusive" : 0, "federate" : 1 });
    kazoo_subscribe("$var(payload)");
 
-   $var(payload) = "{ 'exchange' : 'presence', 'type' : 'topic', 'queue' : 'presence-mwi-MY_HOSTNAME', 'routing' : 'mwi_updates.*', 'exclusive' : 0 , 'federate' : 1 }";
+   $var(payload) = $_s({ "exchange" : "presence", "type" : "topic", "queue" : "presence-mwi-MY_HOSTNAME", "routing" : "mwi_updates.*", "exclusive" : 0 , "federate" : 1 });
    kazoo_subscribe("$var(payload)");
    #!endif