diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index d055d98..85af942 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -81,6 +81,7 @@
 	struct user_namespace *ns;
 
 	ns = container_of(kref, struct user_namespace, kref);
+	free_uid(ns->root_user);
 	kfree(ns);
 }