diff --git a/src/messages.jl b/src/messages.jl
index 6e895f0..a27b9ed 100644
--- a/src/messages.jl
+++ b/src/messages.jl
@@ -102,7 +102,7 @@ end
 function send_msg(s::IO, header, msg)
     id = worker_id_from_socket(s)
     if id > -1
-        return send_msg(worker_from_id(id), header, msg)
+        return send_msg(worker_from_id(id)::Worker, header, msg)
     end
     send_msg_unknown(s, header, msg)
 end