diff --git a/resources/assets/javascripts/lib/jsupdater.js b/resources/assets/javascripts/lib/jsupdater.js
index cb75540eaa45e611ed5ee256700022b1197cf924..6946fb87779ef3f99fecc7d2c1853bf2de596c30 100644
--- a/resources/assets/javascripts/lib/jsupdater.js
+++ b/resources/assets/javascripts/lib/jsupdater.js
@@ -174,6 +174,11 @@ function poll(forced) {
                     $(this).dialog('close');
                 };
 
+                var dialogwidth = '50%';
+                if ($('html').is('.responsive-display')) {
+                    dialogwidth = '85%';
+                }
+
                 $('<div>')
                     .html(message)
                     .css({
@@ -181,11 +186,13 @@ function poll(forced) {
                         padding: '2em 0'
                     })
                     .dialog({
-                        width: '50%',
+                        width: dialogwidth,
                         modal: true,
                         buttons: buttons,
                         title: $gettext('Sie sind nicht mehr im System angemeldet.')
                     });
+
+                $('.ui-dialog-title').css('white-space', 'unset');
             } else {
                 registerNextPoll();
             }