diff --git a/app/Rules/UniqueAccountNumber.php b/app/Rules/UniqueAccountNumber.php
index bcda323b5a..7ad5317a3e 100644
--- a/app/Rules/UniqueAccountNumber.php
+++ b/app/Rules/UniqueAccountNumber.php
@@ -33,7 +33,7 @@ use Illuminate\Contracts\Validation\ValidationRule;
  */
 class UniqueAccountNumber implements ValidationRule
 {
-    private ?Account            $account;
+    private ?Account    $account;
     private ?string       $expectedType;
 
     /**