diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 6ca7b97..147d502 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -332,8 +332,7 @@
 			(info->notify_owner &&
 			 info->notify.sigev_notify == SIGEV_SIGNAL) ?
 				info->notify.sigev_signo : 0,
-			pid_nr_ns(info->notify_owner,
-				current->nsproxy->pid_ns));
+			pid_vnr(info->notify_owner));
 	spin_unlock(&info->lock);
 	buffer[sizeof(buffer)-1] = '\0';
 	slen = strlen(buffer)+1;