diff --git a/Jenkinsfile b/Jenkinsfile
index 4ef12f7..eec1855 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -9,7 +9,9 @@ pipeline {
     stage('Init') {
       steps {
         sh 'rbenv local 3.2.2'
-	env.APP_SESSION_SECRET = sh(script: 'ruby secret.rb', returnStdout: true)
+        script {
+	  env.APP_SESSION_SECRET = sh(script: 'ruby secret.rb', returnStdout: true)
+        }
         sh 'echo "ENV[\\\"APP_SESSION_SECRET\\\"] ||= $(ruby secret.rb)" > .env.rb'
         sh 'echo "ENV[\\\"DB_NAME\\\"] ||= \\\"${DB_NAME}\\\"" >> .env.rb'
         sh 'cat .env.rb'