Can't run with Clojuer

[gdulus]

Hey

I'm trying to use your module in Vert.x + Clojure + lein-vert combo, but i have an exception

java.lang.ClassNotFoundException: MessagebusserviceCoreInit.clj 

My project.clj

(defproject messagebusservice "0.1.0-SNAPSHOT"
            :description "FIXME: write description"
            :url "http://example.com/FIXME"
            :license {:name "Eclipse Public License" :url "http://www.eclipse.org/legal/epl-v10.html"}
            :repositories {"mod-socket-io" "https://github.com/keesun/mvn-repo/raw/master"}
            :dependencies [[org.clojure/clojure "1.6.0"]
                           [com.nhncorp/mod-socket-io "1.0.1"]
                           [org.javassist/javassist "3.19.0-GA"]]
            :plugins [[lein-vertx "0.3.1"]]
            :vertx {:main       messagebusservice.core/init
                    :author     "FIXME: Your name"
                    :keywords   ["FIXME: keywords"]
                    :developers ["FIXME: other developers"]})

My corej.clj

(ns messagebusservice.core
  (:require [vertx.core :as vertx]))

(defn init
  []
  (vertx/periodic 1000
                  (println "I'm working!")))

Is it supported at all?