diff --git a/Jenkinsfile.declarative b/Jenkinsfile.declarative
index 3be3b03..abb419e 100644
--- a/Jenkinsfile.declarative
+++ b/Jenkinsfile.declarative
@@ -1,10 +1,12 @@
 pipeline {
+
   agent any
+
   environment {
-    CI = 'true'
     dockerImage = ''
     imageName = 'sos-milter'
   }
+
   stages {
     stage('Build image') {
       steps {
@@ -28,7 +30,9 @@ pipeline {
     stage('Push image') {
       steps {
         script {
-          dockerImage.push()
+          docker.withRegistry('https://dockreg-fra.zwackl.de') {
+            dockerImage.push()
+          }
         }
       }
     }