diff --git a/playbooks/refstack-client-devstack.yaml b/playbooks/refstack-client-devstack.yaml
index 1074fc3..ca60fa6 100644
--- a/playbooks/refstack-client-devstack.yaml
+++ b/playbooks/refstack-client-devstack.yaml
@@ -17,6 +17,7 @@
         name: ensure-tox
       vars:
         ensure_global_symlinks: true
+      when: refstack_client_ensure_tox is not defined or (refstack_client_ensure_tox is defined and refstack_client_ensure_tox)
 
     - include_vars: ../defaults/main.yaml