diff --git a/vars/job_launch_templates.yml b/vars/job_launch_templates.yml
index 4936c82..ae96dff 100644
--- a/vars/job_launch_templates.yml
+++ b/vars/job_launch_templates.yml
@@ -2,7 +2,7 @@
 tower_launch_jobs:
   - name: inmem_test
     extra_vars:
-      tower_provision_host : "{{ provision_host }}"
+      tower_provision_host : "{{ tower_provision_host | default('localhost') }}"
 
 
 ...