diff --git a/Jenkinsfile b/Jenkinsfile
index cc4866b..637149e 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -26,9 +26,9 @@ pipeline {
             steps {
                 script {
                     def ask_for_certs = input message: 'Upload RootCA certificate and key', parameters: [base64File(name: 'rootca'), base64File(name: 'rootca_key')]
-                    def rootca = readFile params.rootca
+                    def rootca = readFile ask_for_certs["rootca"]
                     sh 'mv ${rootca} roles/rproxy/files/RootCA.crt'
-                    def rootca_key = readFile params.rootca_key
+                    def rootca_key = readFile ask_for_certs["rootca_key"]
                     sh 'mv ${rootca_key} roles/rproxy/files/RootCA.key'
                 }
             }