diff --git a/HISTORY.md b/HISTORY.md
index 37ee334..538e299 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,6 +1,7 @@
 unreleased
 ==========
 
+  * Add `debug` messages
   * deps: depd@~1.0.0
 
 1.3.2 / 2014-09-27
diff --git a/index.js b/index.js
index 65eb2e0..e4c2e63 100644
--- a/index.js
+++ b/index.js
@@ -13,6 +13,7 @@
  */
 
 var auth = require('basic-auth')
+var debug = require('debug')('morgan')
 var deprecate = require('depd')('morgan')
 var onFinished = require('on-finished')
 
@@ -97,10 +98,20 @@ exports = module.exports = function morgan(format, options) {
     req._remoteAddress = getip(req);
 
     function logRequest(){
-      if (skip(req, res)) return;
-      var line = fmt(exports, req, res);
-      if (null == line) return;
-      stream.write(line + '\n');
+      if (skip(req, res)) {
+        debug('skip request')
+        return
+      }
+
+      var line = fmt(exports, req, res)
+
+      if (null == line) {
+        debug('skip line')
+        return
+      }
+
+      debug('log request')
+      stream.write(line + '\n')
     };
 
     // immediate
diff --git a/package.json b/package.json
index 682ff07..7adc01c 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
   "repository": "expressjs/morgan",
   "dependencies": {
     "basic-auth": "1.0.0",
+    "debug": "~2.1.0",
     "depd": "~1.0.0",
     "on-finished": "2.1.0"
   },