diff --git a/lib/stratum.js b/lib/stratum.js
index d183a53..6342548 100644
--- a/lib/stratum.js
+++ b/lib/stratum.js
@@ -269,7 +269,7 @@ var StratumServer = exports.Server = function StratumServer(ports, authorizeFn){
             {
                 subscriptionId : subscriptionId, 
                 socket         : socket,
-                authorizeFn    : options.authorizeFn
+                authorizeFn    : authorizeFn
             }
         );
         stratumClients[subscriptionId] = client;