diff --git a/Tools/setup/ubuntu.sh b/Tools/setup/ubuntu.sh
index ffeb1d0e21..2183ab02d4 100755
--- a/Tools/setup/ubuntu.sh
+++ b/Tools/setup/ubuntu.sh
@@ -1,5 +1,7 @@
 #! /usr/bin/env bash
 
+set -e
+
 ## Bash script to setup PX4 development environment on Ubuntu LTS (20.04, 18.04, 16.04).
 ## Can also be used in docker.
 ##