diff --git a/webassets/js/alerts.js b/webassets/js/alerts.js
index 1d8b13e..5e2cd07 100644
--- a/webassets/js/alerts.js
+++ b/webassets/js/alerts.js
@@ -40,7 +40,7 @@ function updateTable() {
     table.find('thead tr').append(`<th>Start UTC</th>`);
     table.find('thead tr').append(`<th>End UTC</th>`);
     table.find('thead tr').append(`<th>DX</th>`);
-    table.find('thead tr').append(`<th>Freq<span class='hideonmobile'>uencie</span>s & Modes</th>`);
+    table.find('thead tr').append(`<th class='hideonmobile'>Freq<span class='hideonmobile'>uencie</span>s & Modes</th>`);
     table.find('thead tr').append(`<th class='hideonmobile'>Comment</th>`);
     table.find('thead tr').append(`<th class='hideonmobile'>Source</th>`);
     table.find('thead tr').append(`<th class='hideonmobile'>Ref.</th>`);