diff --git a/INSTALL/autoinstall-ubuntu-stable.sh b/INSTALL/autoinstall-ubuntu-stable.sh
index 6dc12bdd..b7f10245 100644
--- a/INSTALL/autoinstall-ubuntu-stable.sh
+++ b/INSTALL/autoinstall-ubuntu-stable.sh
@@ -1,5 +1,7 @@
+#!/bin/sh
+
 apt install git -y
 git clone https://github.com/ShinobiCCTV/Shinobi.git Shinobi
-cd Shinobi
+cd Shinobi || exit
 chmod +x INSTALL/ubuntu-easyinstall.sh && INSTALL/ubuntu-easyinstall.sh
 bash INSTALL/ubuntu-easyinstall.sh
\ No newline at end of file