diff --git a/roles/taskotron/taskotron-trigger/templates/trigger_rules.yml.j2 b/roles/taskotron/taskotron-trigger/templates/trigger_rules.yml.j2
index fa6d5cb93f..845435b1ab 100644
--- a/roles/taskotron/taskotron-trigger/templates/trigger_rules.yml.j2
+++ b/roles/taskotron/taskotron-trigger/templates/trigger_rules.yml.j2
@@ -10,8 +10,7 @@
 - when:
     message_type: KojiBuildPackageCompleted
     name:
-      $nin:
-        - "{{ trigger_abicheck_blacklist | join(',') }}"
+      $nin: [{{ trigger_abicheck_blacklist | join(',') }}]
   do:
     - tasks:
         - abicheck