diff --git a/prepare.sh b/prepare.sh
index ab37512..502f3d2 100755
--- a/prepare.sh
+++ b/prepare.sh
@@ -2,6 +2,6 @@
 
 sudo ./can.sh
 
-sudo chmod 777 /dev/ttyTHS0 
+sudo chmod 777 /dev/ttyTHS1 
 
 sudo ip route add 36.153.162.0/24 via 192.168.5.1 dev eth4
\ No newline at end of file