diff --git a/lib/tpl/dokuwiki/css/basic.css b/lib/tpl/dokuwiki/css/basic.css
index 3e0306448143c64d18d28ce402e482ed4ab97d7f..ba263f4c5bacfbd3bc11f7e8fedb0fed20fd081d 100644
--- a/lib/tpl/dokuwiki/css/basic.css
+++ b/lib/tpl/dokuwiki/css/basic.css
@@ -357,6 +357,9 @@ progress {
     box-sizing: border-box;
 }
 
+select {
+    max-width: 100%;
+}
 optgroup {
     font-style: italic;
     font-weight: bold;