diff --git a/libcontainer/user/user_deprecated.go b/libcontainer/user/user_deprecated.go
index b20e47ca108..3c29f3d1d86 100644
--- a/libcontainer/user/user_deprecated.go
+++ b/libcontainer/user/user_deprecated.go
@@ -1,3 +1,6 @@
+// Package user is an alias for [github.com/moby/sys/user].
+//
+// Deprecated: use [github.com/moby/sys/user].
 package user
 
 import (