diff --git a/roles/mailman3/tasks/main.yml b/roles/mailman3/tasks/main.yml
index b691c71fcb..a44b585764 100644
--- a/roles/mailman3/tasks/main.yml
+++ b/roles/mailman3/tasks/main.yml
@@ -440,7 +440,7 @@
   ansible.builtin.systemd:
     state: started
     enabled: yes
-    name: {{item}}
+    name: "{{item}}"
   with_items:
     - httpd
     - mailman3