diff --git a/ansible.cfg b/ansible.cfg
index 6f381690e42d6dc890dc4d0ae1eeb075abba66c2..d3102a6f41ca0223d5b603ecf9350960493a66b4 100644
--- a/ansible.cfg
+++ b/ansible.cfg
@@ -13,4 +13,3 @@ callback_whitelist = profile_tasks
 roles_path = roles:$VIRTUAL_ENV/usr/local/share/kubespray/roles:$VIRTUAL_ENV/usr/local/share/ansible/roles:/usr/share/kubespray/roles
 deprecation_warnings=False
 inventory_ignore_extensions = ~, .orig, .bak, .ini, .cfg, .retry, .pyc, .pyo, .creds
-jinja2_extensions = jinja2.ext.do
diff --git a/roles/kubernetes/node/templates/kubelet.standard.env.j2 b/roles/kubernetes/node/templates/kubelet.standard.env.j2
index 5fef2476e0e33525b403574cc67716d98ad89ec7..e9d7e960f9ec753252e73d913d6960a0b3aaa24a 100644
--- a/roles/kubernetes/node/templates/kubelet.standard.env.j2
+++ b/roles/kubernetes/node/templates/kubelet.standard.env.j2
@@ -83,20 +83,20 @@ KUBELET_HOSTNAME="--hostname-override={{ kube_override_hostname }}"
 {# Kubelet node labels #}
 {% set role_node_labels = [] %}
 {% if inventory_hostname in groups['kube-master'] %}
-{%   do role_node_labels.append('node-role.kubernetes.io/master=true') %}
+{%   set dummy = role_node_labels.append('node-role.kubernetes.io/master=true') %}
 {%   if not standalone_kubelet|bool %}
-{%     do role_node_labels.append('node-role.kubernetes.io/node=true') %}
+{%     set dummy = role_node_labels.append('node-role.kubernetes.io/node=true') %}
 {%   endif %}
 {% else %}
-{%   do role_node_labels.append('node-role.kubernetes.io/node=true') %}
+{%   set dummy = role_node_labels.append('node-role.kubernetes.io/node=true') %}
 {% endif %}
 {% if inventory_hostname in groups['kube-ingress']|default([]) %}
-{%   do role_node_labels.append('node-role.kubernetes.io/ingress=true') %}
+{%   set dummy = role_node_labels.append('node-role.kubernetes.io/ingress=true') %}
 {% endif %}
 {% set inventory_node_labels = [] %}
 {% if node_labels is defined %}
 {% for labelname, labelvalue in node_labels.iteritems() %}
-{% do inventory_node_labels.append(labelname + '=' + labelvalue) %}
+{% set dummy = inventory_node_labels.append(labelname + '=' + labelvalue) %}
 {% endfor %}
 {% endif %}
 {% set all_node_labels = role_node_labels + inventory_node_labels %}