diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 147d50238c7b7813932202d9d40064147114e68e..60f7a27f7a9e4ddeacb1eb95e1d867860b964f3c 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -509,7 +509,7 @@ static void __do_notify(struct mqueue_inode_info *info)
 			sig_i.si_errno = 0;
 			sig_i.si_code = SI_MESGQ;
 			sig_i.si_value = info->notify.sigev_value;
-			sig_i.si_pid = task_pid_vnr(current);
+			sig_i.si_pid = task_tgid_vnr(current);
 			sig_i.si_uid = current->uid;
 
 			kill_pid_info(info->notify.sigev_signo,