diff --git a/Jenkinsfile b/Jenkinsfile
index 3096821..ee393c7 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,5 +1,4 @@
 pipeline {
-
   environment {
     registry = 'jcabillot/htpasswd'
     registryCredential = 'dockerhub_jcabillot'
@@ -12,7 +11,7 @@ pipeline {
     stage('Building image') {
       steps{
         script {
-          docker.build registry + ":master"
+          dockerImage = docker.build registry + ":master"
         }
       }
     }