diff --git a/index.js b/index.js
index fe47fd6..14c31e0 100644
--- a/index.js
+++ b/index.js
@@ -175,7 +175,7 @@ function getUserFromMention(mention) {
 }
 
 function getChannelName(username) {
-  return `${username}s-adventurers`;
+  return `${username.toLowerCase()}s-adventurers`;
 }
 
 function makeTempChannel(message, adventureMessage) {