diff --git a/modules/coffee.go b/modules/coffee.go
index 51698e7..f1773ce 100644
--- a/modules/coffee.go
+++ b/modules/coffee.go
@@ -100,7 +100,7 @@ func (r *Receivers) makeCoffee() {
 
 func (r *Receivers) addNames(newNames []string) {
 	for _, v := range newNames {
-		r.names[v] = true
+		r.names[strings.ToLower(v)] = true
 	}
 }