diff --git a/roles/kubespray-defaults/defaults/main.yaml b/roles/kubespray-defaults/defaults/main.yaml
index fac0b44d88a783609675fc901903cd4dc9ac70ba..84fc0ee74614551980a167938047c2fcd5c6edd1 100644
--- a/roles/kubespray-defaults/defaults/main.yaml
+++ b/roles/kubespray-defaults/defaults/main.yaml
@@ -4,6 +4,9 @@
 bootstrap_os: none
 kube_api_anonymous_auth: false
 
+# Default value, but will be set to true automatically if detected
+is_atomic: false
+
 ## Change this to use another Kubernetes version, e.g. a current beta release
 kube_version: v1.6.7