diff --git a/server.go b/server.go
index b887523..ff217d7 100644
--- a/server.go
+++ b/server.go
@@ -358,7 +358,7 @@ func handleCmdQuit(sv *Server, msg *irc.Message) {
 func handleCmdMode(sv *Server, msg *irc.Message) {
 	if strings.HasPrefix(msg.Args[0], "#") {
 		chid := strings.ToLower(msg.Args[0])
-		if _, exists := chUsers[chid]; !exists {
+		if _, exists := sv.chUsers[chid]; !exists {
 			return
 		}
 		if _, exists = msg.Args[1]; !exists {