diff --git a/Jenkinsfile b/Jenkinsfile
index fcb295a1ef41f44f3f1cdb47a83393ebb8f45589..a9c2a31958c3d0cd04b449dcea115dab926666b9 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,4 +1,5 @@
 pipeline {
+    def customImage
     agent {
         node {
             label 'docker'
@@ -18,8 +19,6 @@ pipeline {
         cron('@weekly')
     }
     stages {
-        def customImage
-
         stage('Clone repository') {
             checkout scm
         }