diff --git a/Jenkinsfile b/Jenkinsfile
index 3369b19..3891c57 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,6 +1,8 @@
 pipeline {
     agent any 
-    stage('Preparation') { 
+    
+    stages {
+        stage('Preparation') { 
         properties([
             parameters([
                 string(
@@ -16,8 +18,7 @@ pipeline {
                 )
             ])
         ])
-    }
-    stages {
+        }
         stage('checkout: Check out from version control') {
             steps {
                 git branch: 'master',