diff --git a/types/gulp/test/index.ts b/types/gulp/test/index.ts
index 72239a7151..853799d8c4 100644
--- a/types/gulp/test/index.ts
+++ b/types/gulp/test/index.ts
@@ -65,9 +65,7 @@ const test: gulp.TaskFunction = (done) => {
 
 gulp.task(test);
 
-gulp.task('clean', (done) => {
-    del(['.build/'], done);
-});
+gulp.task('clean', () => del(['.build/']));
 
 gulp.task('somename', () => {
     return gulp.src('client/**/*.js')
@@ -75,18 +73,6 @@ gulp.task('somename', () => {
         .pipe(gulp.dest('build'));
 });
 
-gulp.task('clean', () => {
-    return new Promise((resolve, reject) => {
-        del(['.build/'], (err: any) => {
-            if (err) {
-                reject(err);
-            } else {
-                resolve();
-            }
-        });
-    });
-});
-
 gulp.task('clean', () => {
     return promisedDel(['.build/']);
 });