diff --git a/gulpfile.js b/gulpfile.js
index 9aa22351..3774d3f7 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -34,6 +34,8 @@ gulp.task('static', function () {
 });
 
 gulp.task('test', function (cb) {
+  var mochaErr;
+
   gulp.src([
     'lib/**/*.js',
     'index.js'
@@ -48,8 +50,13 @@ gulp.task('test', function (cb) {
       .pipe(mocha({
         reporter: 'spec'
       }))
+      .on('error', function (err) {
+        mochaErr = err;
+      })
       .pipe(istanbul.writeReports())
-      .on('end', cb);
+      .on('end', function () {
+        cb(mochaErr);
+      });
   });
 });