diff --git a/app/Http/Requests/Design/StoreDesignRequest.php b/app/Http/Requests/Design/StoreDesignRequest.php
index 15e9cabd8bf9..6872a51e19ed 100644
--- a/app/Http/Requests/Design/StoreDesignRequest.php
+++ b/app/Http/Requests/Design/StoreDesignRequest.php
@@ -39,6 +39,7 @@ class StoreDesignRequest extends Request
     public function prepareForValidation()
     {
         $input = $this->all();
+        $input['design'] = is_array($input['design']) ? $input['design'] : [];
 
         if (! array_key_exists('product', $input['design']) || is_null($input['design']['product'])) {
             $input['design']['product'] = '';