diff --git a/src/Casts/LeenooksCarbon.php b/src/Casts/LeenooksCarbon.php
index d175b32..72aaba5 100644
--- a/src/Casts/LeenooksCarbon.php
+++ b/src/Casts/LeenooksCarbon.php
@@ -13,9 +13,9 @@ class LeenooksCarbon implements CastsAttributes
      *
      * @param  array<string, mixed>  $attributes
      */
-    public function get(Model $model, string $key, mixed $value, array $attributes): Carbon
+    public function get(Model $model, string $key, mixed $value, array $attributes): ?Carbon
     {
-        return Carbon::create($value);
+        return $value ? Carbon::create($value) : NULL;
     }
 
     /**