diff --git a/magnum/templates/heat-kubernetes/kubecluster.yaml b/magnum/templates/heat-kubernetes/kubecluster.yaml
index a9b0091e82..d4f08c3a1d 100644
--- a/magnum/templates/heat-kubernetes/kubecluster.yaml
+++ b/magnum/templates/heat-kubernetes/kubecluster.yaml
@@ -297,6 +297,9 @@ resources:
         - protocol: tcp
           port_range_min: 2380
           port_range_max: 2380
+        - protocol: tcp
+          port_range_min: 6443
+          port_range_max: 6443
 
   secgroup_kube_minion:
     type: OS::Neutron::SecurityGroup
diff --git a/magnum/templates/heat-kubernetes/kubemaster-coreos.yaml b/magnum/templates/heat-kubernetes/kubemaster-coreos.yaml
index 99f4308b6c..06ff78a63f 100644
--- a/magnum/templates/heat-kubernetes/kubemaster-coreos.yaml
+++ b/magnum/templates/heat-kubernetes/kubemaster-coreos.yaml
@@ -151,6 +151,9 @@ resources:
         - protocol: tcp
           port_range_min: 2380
           port_range_max: 2380
+        - protocol: tcp
+          port_range_min: 6443
+          port_range_max: 6443
 
   ######################################################################
   #