diff --git a/Jenkinsfile b/Jenkinsfile
index 3992054..23491a6 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -5,7 +5,9 @@ pipeline {
     stage('Init') {
       steps {
         sh 'rbenv local 3.2.2'
-        APP_SECRET = sh (script: 'ruby -rsecurerandom -e "puts SecureRandom.base64(64).inspect"', returnStdout: true).trim()
+        script {
+          APP_SECRET = sh (script: 'ruby -rsecurerandom -e "puts SecureRandom.base64(64).inspect"', returnStdout: true).trim()
+        }
         sh 'echo ${APP_SECRET}'
         //sh 'echo "ENV[\\\"DB_NAME\\\"] ||= \\\"url_shortener.db\\\"" >> .env.rb'
         //sh 'cat .env.rb'