diff --git a/tasks/drivers/kvm/nova_enable_ksm.yml b/tasks/drivers/kvm/nova_enable_ksm.yml
index 0e93ee8d..3bebfc78 100644
--- a/tasks/drivers/kvm/nova_enable_ksm.yml
+++ b/tasks/drivers/kvm/nova_enable_ksm.yml
@@ -11,5 +11,5 @@
     enabled: yes
     state: started
   when:
-    - ansible_facts['pkg_mgr'] in [dnf', 'apt']
+    - ansible_facts['pkg_mgr'] in ['dnf', 'apt']