diff --git a/be/app/Http/Controllers/SubTaskController.php b/be/app/Http/Controllers/SubTaskController.php
index 82e4d69..db3286c 100644
--- a/be/app/Http/Controllers/SubTaskController.php
+++ b/be/app/Http/Controllers/SubTaskController.php
@@ -208,8 +208,8 @@ class SubTaskController extends Controller
         }
 
         // validacia na max 50MB size pre attachmenty. neslo dat do klasickeho laravel validation, tak je to separe
-        if ($files = $request->file('data')['files']) {
-            foreach ( $files as $file ) {
+        if ($files = $request->file('data')) {
+            foreach ( $files['files'] as $file ) {
                 if ($file->getSize() > 52428800)
                     return response()->json([
                         'files' => 'File size must be less than 50MB',