diff --git a/resources/lang/en_US/validation.php b/resources/lang/en_US/validation.php
index db12a84f92..e4e734f9fe 100644
--- a/resources/lang/en_US/validation.php
+++ b/resources/lang/en_US/validation.php
@@ -22,6 +22,7 @@ declare(strict_types=1);
 
 return [
     'iban'                           => 'This is not a valid IBAN.',
+    'source_equals_destination'      => 'The source account equals the destination account',
     'unique_account_number_for_user' => 'It looks like this account number is already in use.',
     'unique_iban_for_user'           => 'It looks like this IBAN is already in use.',
     'deleted_user'                   => 'Due to security constraints, you cannot register using this email address.',