diff --git a/app/Casts/StorageFile.php b/app/Casts/StorageFile.php
index 8c75f25..0150df5 100644
--- a/app/Casts/StorageFile.php
+++ b/app/Casts/StorageFile.php
@@ -32,7 +32,7 @@ class StorageFile implements CastsAttributes
      */
     public function get($model, $key, $value, $attributes)
     {
-        return $value ? (Str::startsWith($value, ['http://', 'https://']) ? $value : Storage::disk($this->disk)->url($value)) : '';
+        return $value ? (Str::startsWith($value, ['http://', 'https://']) ? $value : Storage::disk($this->disk)->url($value)) : null;
     }
 
     /**