diff --git a/Jenkinsfile b/Jenkinsfile
index f14dc1d..49fe482 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -24,14 +24,15 @@ pipeline {
                 }
             }
             steps {
-                def ask_for_certs = input message: 'Upload RootCA certificate and key', parameters: [file(name: 'rootca'), file(name: 'rootca_key')]
+                script {
+                    def ask_for_certs = input message: 'Upload RootCA certificate and key', parameters: [file(name: 'rootca'), file(name: 'rootca_key')]
+                }
                 withFileParameter('rootca') {
                     sh 'mv ${rootca} roles/rproxy/files/RootCA.crt'
                 }
                 withFileParameter('rootca_key') {
                     sh 'mv ${rootca_key} roles/rproxy/files/RootCA.key'
                 }
-                ask_for_certs.delete()
             }
         }
         stage('Install Rproxy') {