diff --git a/app/Rules/UniqueAccountNumber.php b/app/Rules/UniqueAccountNumber.php
index 7ad5317a3e..bac945418c 100644
--- a/app/Rules/UniqueAccountNumber.php
+++ b/app/Rules/UniqueAccountNumber.php
@@ -34,7 +34,7 @@ use Illuminate\Contracts\Validation\ValidationRule;
 class UniqueAccountNumber implements ValidationRule
 {
     private ?Account    $account;
-    private ?string       $expectedType;
+    private ?string     $expectedType;
 
     /**
      * Create a new rule instance.