diff --git a/ipc/sem.c b/ipc/sem.c
index 89bfdff..b676fef 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -856,7 +856,7 @@
 {
 	struct sem_array *sma;
 	int err;
-	struct sem_setbuf setbuf;
+	struct sem_setbuf uninitialized_var(setbuf);
 	struct kern_ipc_perm *ipcp;
 
 	if(cmd == IPC_SET) {