diff --git a/src/snek/static/base.css b/src/snek/static/base.css
index 9e5a02b..a928a72 100644
--- a/src/snek/static/base.css
+++ b/src/snek/static/base.css
@@ -101,7 +101,7 @@ a {
 
 .chat-messages {
   flex: 1;
-  overflow-y: auto;
+  overflow-y: scroll;
   scrollbar-width: none;
   -ms-overflow-style: none;
   padding: 10px;