1 files changed, 1 insertions, 1 deletions
diff --git a/user/zombie.c b/user/zombie.c
index b56231a..8b89a33 100644
--- a/user/zombie.c
+++ b/user/zombie.c
@@ -10,5 +10,5 @@ main(void)
 {
   if(fork() > 0)
     sleep(5);  // Let child exit before parent.
-  exit();
+  exit(0);
 }