diff --git a/guacamole/src/main/webapp/app/client/styles/connection-select-menu.css b/guacamole/src/main/webapp/app/client/styles/connection-select-menu.css
index 50445634b..3abfaa45e 100644
--- a/guacamole/src/main/webapp/app/client/styles/connection-select-menu.css
+++ b/guacamole/src/main/webapp/app/client/styles/connection-select-menu.css
@@ -35,6 +35,8 @@
     font-size: 0.8em;
     right: auto;
     left: 0;
+    max-width: 100vw;
+    width: 400px;
 }
 
 .connection-select-menu .menu-dropdown .menu-contents .filter input {
@@ -46,3 +48,10 @@
     margin-bottom: 0.5em;
     padding: 0;
 }
+
+.connection-select-menu .menu-dropdown .menu-contents .group-list .caption {
+    display: inline-block;
+    width: 100%;
+    overflow: hidden;
+    text-overflow: ellipsis;
+}