diff --git a/composer.json b/composer.json
index a30d4d1..821c9a9 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
     "fill"
   ],
   "license": "MIT",
-  "version": "3.0.2",
+  "version": "3.0.3",
   "authors": [
     {
       "name": "kolirt"
diff --git a/src/MasterModel.php b/src/MasterModel.php
index 1e66eef..10eec03 100644
--- a/src/MasterModel.php
+++ b/src/MasterModel.php
@@ -97,7 +97,7 @@ public function fill(array $attributes)
 
                 try {
                     $path = $this->$key;
-                    if ($value != $this->$key && file_exists(storage_path($path)) && $path) {
+                    if (is_string($path) && $value != $this->$key && file_exists(storage_path($path)) && $path) {
                         unlink(storage_path() . $path);
                     }
                 } catch (\Exception $e) {