diff --git a/lib/service/index.js b/lib/service/index.js
index 1778617..94259c1 100644
--- a/lib/service/index.js
+++ b/lib/service/index.js
@@ -164,7 +164,10 @@ Service.prototype.startWebServer = function(port, host) {
       self.announcement.webPort = address.port
       debug('[%s] web server started at %s:%s', self.name, address.address, address.port)
 
-      self.setHttpServer(server)
+      // Make sure listeners in `init()` could get this event.
+      process.nextTick(function() {
+        self.setHttpServer(server)
+      })
     }
   })
 }