diff --git a/Jenkinsfile b/Jenkinsfile
index afecbf6..7310271 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -13,7 +13,7 @@ String actionURL = "https://code-repo.d4science.org/manuele.simi/gCubeActions/ra
 println "Querying ${actionURL}"
 
 //save the action code
-def action_code = actionURL.toURL().getText().replaceAll('"','\x22').replaceAll('\'','\x27')
+def action_code = actionURL.toURL().getText().replaceAll('"', $/\x22/$).replaceAll('\'', $/\x27/$)
 println "Action code: ${action_code}"
 
 //TODO: get the list of repos from Jenkins?