From 54ad724241bb842684831254132f8ef1af738030 Mon Sep 17 00:00:00 2001
From: Nilesh Londhe <nilesh@cloudgeni.us>
Date: Wed, 15 Sep 2021 03:48:49 -0700
Subject: [PATCH] Update fork_101.md (#150)

---
 exercises/os/fork_101.md | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/exercises/os/fork_101.md b/exercises/os/fork_101.md
index 6aeaa7b..5dd612b 100644
--- a/exercises/os/fork_101.md
+++ b/exercises/os/fork_101.md
@@ -4,12 +4,12 @@ Answer the questions given the following program (without running it):
 
 ```
 #include<stdio.h>
-
+#include <unistd.h> 
 int main()
 {
-fork();
-printf("\nyay\n");
-return 0;
+  fork();
+  printf("\nyay\n");
+  return 0;
 }
 ```