diff --git a/tools/utun_update.sh b/tools/utun_update.sh
index 26faa34c..87035524 100755
--- a/tools/utun_update.sh
+++ b/tools/utun_update.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-set -e
+set -eo pipefail
 
 # utun_update.sh - Remote uTun update script
 # Usage: ./tools/utun_update.sh [fast|full] [workdir]