diff --git a/Jenkinsfile b/Jenkinsfile
index b94edc9..e02ace7 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,5 +1,5 @@
-def getBranchNames(project){
-    project.getItems().each { job ->
+def getBranchNames(projectName){
+    jenkins.model.Jenkins.instance.getItem(projectName).getItems().each { job ->
         echo job.getProperty(org.jenkinsci.plugins.workflow.multibranch.BranchJobProperty.class).getBranch().getName()
     }
 }