diff --git a/ci/Jenkinsfile b/ci/Jenkinsfile
index 24a3cc7..a4e0e15 100644
--- a/ci/Jenkinsfile
+++ b/ci/Jenkinsfile
@@ -2,4 +2,5 @@
 
 buildContainerImage2(
     project: 'packages',
+    defaultBranch: 'master',
 )