diff --git a/app/Http/Controllers/ArticleController.php b/app/Http/Controllers/ArticleController.php
index a35af6b4..b1133390 100755
--- a/app/Http/Controllers/ArticleController.php
+++ b/app/Http/Controllers/ArticleController.php
@@ -8,6 +8,7 @@ use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Illuminate\Support\Facades\DB;
 use App\Article;
+use DateTime;
 
 class ArticleController extends Controller
 {