diff --git a/nodejs/build-contract-packagelock b/nodejs/build-contract-packagelock
index 16f07f8..332c5a0 100755
--- a/nodejs/build-contract-packagelock
+++ b/nodejs/build-contract-packagelock
@@ -1,4 +1,5 @@
 #!/bin/bash
+set -e
 
 SCRIPTPATH="$( cd "$(dirname "$0")" ; pwd -P )"