diff --git a/Jenkinsfile b/Jenkinsfile
index cb57e0a..b09afe2 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -20,7 +20,7 @@ pipeline {
                 sh 'rm -rf /var/www/combi/assets /var/www/combi/data /var/www/combi/n'
                 // Check if the tiles folder exists. If it does not,
                 // extract the tiles
-                res = sh(script: "test -d /var/www/combi/tiles && echo '1' || echo '0' ", returnStdout: true).trim()
+                def res = sh(script: "test -d ${target_dir}", returnStatus: true) == 0
                 if (res == '0') {
                     sh 'cp tiles.tar.gz /var/www/combi/'
                     sh 'tar -xf /var/www/combi/tiles.tar.gz -C /var/www/combi'