diff --git a/lib/runner.js b/lib/runner.js
index 2e25e0c..c24cada 100644
--- a/lib/runner.js
+++ b/lib/runner.js
@@ -22,11 +22,16 @@ function runner(options, next) {
 
     /*jslint unparam:true*/
     exec(args.join(' ').trim(), function (err, stdout, stderr) {
-
       return parseOutput(stderr, next);
+    }).on('exit', function (exitCode) {
+      process.exitCode = exitCode;
     });
     /*jslint unparam:false*/
   });
 }
 
+process.on('exit', function () {
+  process.exit(process.exitCode);
+});
+
 module.exports = runner;
diff --git a/package.json b/package.json
index 3717259..13f1c26 100644
--- a/package.json
+++ b/package.json
@@ -33,8 +33,9 @@
   },
   "devDependencies": {
     "grunt": "~0.4.1",
+    "grunt-cli": "^1.2.0",
     "grunt-jslint": "~1.1.12",
-    "vows": "~0.7.0",
-    "grunt-vows": "~0.4.0"
+    "grunt-vows": "~0.4.0",
+    "vows": "~0.7.0"
   }
 }