diff --git a/lib/application.js b/lib/application.js
index 373f884..232d9db 100644
--- a/lib/application.js
+++ b/lib/application.js
@@ -3,7 +3,7 @@
  * Module dependencies.
  */
 
-var debug = require('debug')('koa:app');
+var debug = require('debug')('koa:application');
 var Emitter = require('events').EventEmitter;
 var compose = require('koa-compose');
 var context = require('./context');
@@ -73,7 +73,7 @@ app.listen = function(){
  */
 
 app.use = function(fn){
-  debug('use %s', fn.name || 'unnamed');
+  debug('use %s', fn.name || '-');
   this.middleware.push(fn);
   return this;
 };