diff --git a/defaults/main.yml b/defaults/main.yml
index 1fafd61a..a2cc5193 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -34,7 +34,7 @@ debug: False
 # for the service setup. The host must already have
 # clouds.yaml properly configured.
 nova_service_setup_host: "{{ openstack_service_setup_host | default('localhost') }}"
-nova_service_setup_host_python_interpreter: "{{ openstack_service_setup_host_python_interpreter | default((nova_service_setup_host == 'localhost') | ternary(ansible_playbook_python, ansible_python['executable'])) }}"
+nova_service_setup_host_python_interpreter: "{{ openstack_service_setup_host_python_interpreter | default((nova_service_setup_host == 'localhost') | ternary(ansible_playbook_python, ansible_facts['python']['executable'])) }}"
 
 # Set the host which will run compute initialization tasks such as checking
 # for a compute node to be up and running cell discovery.