diff --git a/tasks/main.yml b/tasks/main.yml
index c7552c4e..c9af56ea 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -64,7 +64,7 @@
   static: no
   when:
     - "'nova_conductor' in group_names"
-    - "inventory_hostname == (groups['nova_conductor'] | intersect(ansible_play_hosts))[0]"
+    - "inventory_hostname == ((groups['nova_conductor'] | intersect(ansible_play_hosts)) | list)[0]"
   tags:
     - nova-config
 
@@ -76,7 +76,7 @@
   static: no
   when:
     - "'nova_conductor' in group_names"
-    - "inventory_hostname == (groups['nova_conductor'] | intersect(ansible_play_hosts))[0]"
+    - "inventory_hostname == ((groups['nova_conductor'] | intersect(ansible_play_hosts)) | list)[0]"
   tags:
     - nova-config