diff --git a/interface/lib/lang/de.lng b/interface/lib/lang/de.lng
index 0ccdb30c8ef511bf998cec2a86d8c23472b182e9..91300ea76067b1eeda84a925e85e05b0250c2d05 100644
--- a/interface/lib/lang/de.lng
+++ b/interface/lib/lang/de.lng
@@ -137,4 +137,6 @@ $wb['client_you_are_locked'] = 'Sie haben keine Berechtigung, Einstellungen zu v
 $wb['gender_m_txt'] = 'Herr';
 $wb['gender_f_txt'] = 'Frau';
 $wb['client_cannot_be_deleted_because_of_billing_module_txt'] = 'Für den Kunden existieren Einträge im Billing-Modul, daher kann er nicht gelöscht werden.';
+$wb['yes_txt'] = 'Ja';
+$wb['no_txt'] = 'Nein';
 ?>
\ No newline at end of file
diff --git a/interface/lib/lang/en.lng b/interface/lib/lang/en.lng
index 1ce525b0b39a7dda2b26871b6f519ec88e94b971..a8939b997a97031656f09245269443bb512f9b9a 100644
--- a/interface/lib/lang/en.lng
+++ b/interface/lib/lang/en.lng
@@ -139,4 +139,6 @@ $wb['client_you_are_locked'] = 'You have no permission to change any settings.';
 $wb['gender_m_txt'] = 'Mr.';
 $wb['gender_f_txt'] = 'Ms.';
 $wb['client_cannot_be_deleted_because_of_billing_module_txt'] = 'This client has records in the billing module, therefore he cannot be deleted.';
+$wb['yes_txt'] = 'Yes';
+$wb['no_txt'] = 'No';
 ?>