diff --git a/roles/basessh/tasks/main.yml b/roles/basessh/tasks/main.yml
index fa13669e71..e16dae976f 100644
--- a/roles/basessh/tasks/main.yml
+++ b/roles/basessh/tasks/main.yml
@@ -187,7 +187,7 @@
 
 - name: Set some extra signing facts
   set_fact:
-    sign_hostnames: "{{ssh_hostnames}} + ['{{inventory_hostname}}']"
+    sign_hostnames: "{{ssh_hostnames + [inventory_hostname]}}"
     sign_validity: "-1h:+52w"
   tags:
   - basessh