diff --git a/Jenkinsfile b/Jenkinsfile
index 888b05e..a628aa3 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -20,7 +20,7 @@ pipeline{
   {
     stage('Build') {
       steps {
-        sh'''
+        sh'''#!/bin/bash
         set -e
         set -x
         cd $WORKSPACE