diff --git a/jenkins/client/job/deploy/update/update_opencontrail4.yml b/jenkins/client/job/deploy/update/update_opencontrail4.yml
index 98110cb..3487ef4 100644
--- a/jenkins/client/job/deploy/update/update_opencontrail4.yml
+++ b/jenkins/client/job/deploy/update/update_opencontrail4.yml
@@ -43,3 +43,6 @@
               type: string
               default: '1'
               description: Number of selected nodes to live apply compute update.
+            ASK_CONFIRMATION:
+              type: boolean
+              default: 'true'