diff --git a/main.go b/main.go
index 27e7ff5..96c1fa0 100644
--- a/main.go
+++ b/main.go
@@ -301,7 +301,19 @@ func main() {
 		fclient.WithTimeout(config.HomeserverVersionInfoTimeout),
 	)
 
-	joinedMembers, err := client.JoinedMembers(context.Background(), id.RoomID(config.Room))
+	var roomId id.RoomID
+	// Check, if given room is an alias and try to resolve it into a room id.
+	if strings.HasPrefix(config.Room, "#") {
+		resolvedAlias, err := client.ResolveAlias(context.Background(), id.RoomAlias(config.Room))
+		if err != nil {
+			log.Fatal(err)
+		}
+		roomId = resolvedAlias.RoomID
+	} else {
+		roomId = id.RoomID(config.Room)
+	}
+
+	joinedMembers, err := client.JoinedMembers(context.Background(), roomId)
 	if err != nil {
 		log.Fatal(err)
 	}