diff --git a/offline/uuid.go b/offline/uuid.go
index 5e62baf..176c8bc 100644
--- a/offline/uuid.go
+++ b/offline/uuid.go
@@ -11,9 +11,8 @@ func NameToUUID(name string) uuid.UUID {
 	h := md5.New()
 	h.Write([]byte("OfflinePlayer:"))
 	h.Write([]byte(name))
-	s := h.Sum(nil)
 	var id uuid.UUID
-	copy(id[:], s)
+	h.Sum(id[:0])
 	id[6] = (id[6] & 0x0f) | uint8((version&0xf)<<4)
 	id[8] = (id[8] & 0x3f) | 0x80 // RFC 4122 variant
 	return id