diff --git a/Layout/default/TimerecordingBilling/Detail.php b/Layout/default/TimerecordingBilling/Detail.php
index 53d7b11ef..1523b89a8 100644
--- a/Layout/default/TimerecordingBilling/Detail.php
+++ b/Layout/default/TimerecordingBilling/Detail.php
@@ -134,7 +134,7 @@
                 window.open('<?= self::getUrl("TimerecordingBilling", "api", ['do' => 'generatebmdexportnlz']) ?>&month=' + $('#month').data('month'), '_blank');
             });
             $('body').on('click', '#month-complete', function () {
-                if (confirm('Buchung wirklich löschen?')) {
+                if (confirm('Monat ' + $('#month').data('month') + ' wirklich abschließen?')) {
                     $.post("<?= self::getUrl("TimerecordingBilling", "api", ['do' => 'completemonth']) ?>", {
                         month: $.trim($('#month').data('month')),
                         ajax: 1
diff --git a/Layout/default/TimerecordingBilling/DetailClosed.php b/Layout/default/TimerecordingBilling/DetailClosed.php
index a0ecc6bf0..7b4ec113b 100644
--- a/Layout/default/TimerecordingBilling/DetailClosed.php
+++ b/Layout/default/TimerecordingBilling/DetailClosed.php
@@ -212,7 +212,7 @@
                 window.open('<?= self::getUrl("TimerecordingBilling", "api", ['do' => 'generatebmdexportnlzclosed']) ?>&month=' + $('#month').data('month'), '_blank');
             });
             $('body').on('click', '#month-complete', function () {
-                if (confirm('Buchung wirklich löschen?')) {
+                if (confirm('Monat wirklich abschließen?')) {
                     $.post("<?= self::getUrl("TimerecordingBilling", "api", ['do' => 'completemonth']) ?>", {
                         month: $.trim($('#month').data('month')),
                         ajax: 1