diff --git a/ipc/sem.c b/ipc/sem.c
index df98de2..e803abe 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -913,10 +913,7 @@
 		freeary(ns, ipcp);
 		goto out_up;
 	case IPC_SET:
-		ipcp->uid = semid64.sem_perm.uid;
-		ipcp->gid = semid64.sem_perm.gid;
-		ipcp->mode = (ipcp->mode & ~S_IRWXUGO)
-				| (semid64.sem_perm.mode & S_IRWXUGO);
+		ipc_update_perm(&semid64.sem_perm, ipcp);
 		sma->sem_ctime = get_seconds();
 		break;
 	default: