diff --git a/uid.go b/uid.go
index 097edcd..a17c48d 100644
--- a/uid.go
+++ b/uid.go
@@ -43,7 +43,7 @@ type Range struct {
 	Length int    // lenght of this range
 }
 type rangeQueue struct {
-	//deque.Deque[*Range]
+	deque.Deque[*Range]
 }
 
 const (