diff --git a/infrastructure/templates/infrastructure/yml/provision.yml b/infrastructure/templates/infrastructure/yml/provision.yml
index ab67c1e..69cb524 100644
--- a/infrastructure/templates/infrastructure/yml/provision.yml
+++ b/infrastructure/templates/infrastructure/yml/provision.yml
@@ -1 +1 @@
-openstack_flavor: {{ vm_size }}
+openstack_flavor: "{{ '{' }}{{ '{' }} {{ vm_size }} {{ '}' }}{{ '}' }}"