diff --git a/app/Http/Requests/StoreBooking.php b/app/Http/Requests/StoreBooking.php
index 6e51baf..8db61f3 100644
--- a/app/Http/Requests/StoreBooking.php
+++ b/app/Http/Requests/StoreBooking.php
@@ -34,6 +34,7 @@ class StoreBooking extends FormRequest
             'personTarget.person_id' => 'empty_if:person_target_id'
                 . '|required_with:personTarget.date',
             'personTarget.date' => 'sometimes'
+                . '|nullable'
                 . '|empty_if:person_target_id'
                 . '|before_or_equal:date'
         ];