diff --git a/lib/handlers.js b/lib/handlers.js
index 50c6fa8..2f9925e 100644
--- a/lib/handlers.js
+++ b/lib/handlers.js
@@ -92,7 +92,7 @@ handlers[WAMP.CALL] = function (session, args) {
                 WAMP.ERROR,
                 WAMP.CALL,
                 callId,
-                {},
+                err,
                 "wamp.error.callee_failure"
             ];
             session.send(msg);