diff --git a/roles/onos-vm-install/files/onos-setup-playbook.yml b/roles/onos-vm-install/files/onos-setup-playbook.yml
index feece0b..94352be 100644
--- a/roles/onos-vm-install/files/onos-setup-playbook.yml
+++ b/roles/onos-vm-install/files/onos-setup-playbook.yml
@@ -79,6 +79,6 @@
     # until the next login, so become it again to reload group membership
     - name: Pull docker image for ONOS
       become: yes
-      become_user: {{ ansible_user_id }}
+      become_user: "{{ ansible_user_id }}"
       command: docker pull onosproject/onos
 
diff --git a/roles/xos-vm-install/files/xos-setup-cord-pod-playbook.yml b/roles/xos-vm-install/files/xos-setup-cord-pod-playbook.yml
index e472325..490a892 100644
--- a/roles/xos-vm-install/files/xos-setup-cord-pod-playbook.yml
+++ b/roles/xos-vm-install/files/xos-setup-cord-pod-playbook.yml
@@ -54,6 +54,6 @@
     # until the next login, so become it again to reload group membership
     - name: Pull docker images for XOS
       become: yes
-      become_user: {{ ansible_user_id }}
+      become_user: "{{ ansible_user_id }}"
       command: docker-compose pull chdir="{{ xos_repo_dest }}/xos/configurations/{{ xos_configuration }}"