diff --git a/app/Http/Requests/Setting/Currency.php b/app/Http/Requests/Setting/Currency.php
index 97159a63e..5e2d8fedd 100644
--- a/app/Http/Requests/Setting/Currency.php
+++ b/app/Http/Requests/Setting/Currency.php
@@ -40,6 +40,7 @@ class Currency extends FormRequest
             'enabled' => 'integer|boolean',
             'default_currency' => 'boolean',
             'symbol_first' => 'nullable|boolean',
+            'thousands_separator' => 'different:decimal_mark',
         ];
     }
 }