diff --git a/Jenkinsfile b/Jenkinsfile
index c458a35..27caec4 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -8,6 +8,7 @@ pipeline {
   stages {
     stage('install') {
       steps {
+        sh 'ls -a'
         sh 'node -v'
         sh 'npm -v'
         sh 'npm ci'