diff --git a/application/views/logbookadvanced/checkresult.php b/application/views/logbookadvanced/checkresult.php
index c1cc0d25f..858d2c878 100644
--- a/application/views/logbookadvanced/checkresult.php
+++ b/application/views/logbookadvanced/checkresult.php
@@ -331,12 +331,12 @@ function check_incorrect_itu_zones($result, $custom_date_format) { ?>
echo __("The following QSOs were found to have a different ITU zone compared to what this DXCC normally has (a maximum of 5000 QSOs are shown). The Update function will only affect DXCCs covering a single ITU zone. Entries with multiple ITU zones have to be corrected manually."); ?>
= __("Force update even if DXCC covers multiple ITU zones") ?>
+
+
= __("The update function can only set the main ITU zone which is assigned to the DXCC. If the DXCC covers multiple ITU zones there is a chance that this is not correct. So by default only QSOs with DXCCs covering a single ITU zone are updated. This checkbox overrides this but might result in wrong data. Use with caution!"); ?>