diff --git a/update.sh b/update.sh
index d5691ef..e86ec1a 100755
--- a/update.sh
+++ b/update.sh
@@ -6,6 +6,6 @@ yarn run compile
 cd ./arduino/itender/
 arduino-cli compile --fqbn arduino:avr:mega itender.ino || true
 sudo systemctl stop itender
-arduino-cli upload --port /dev/ACM0 --fqbn arduino:avr:mega itender.ino || true
+timeout 30 arduino-cli upload --port /dev/ttyACM0 --fqbn arduino:avr:mega itender.ino || true
 sudo systemctl start itender
-exit 0
\ No newline at end of file
+exit 0