diff --git a/roles/acme/certificate/defaults/main.yml b/roles/acme/certificate/defaults/main.yml
index 55f2aea..9efb9e6 100644
--- a/roles/acme/certificate/defaults/main.yml
+++ b/roles/acme/certificate/defaults/main.yml
@@ -17,6 +17,6 @@ acme_key_location: "{{ acme_certificate_directory }}/privkey.pem"
 acme_keyfullchain_location: "{{ acme_certificate_directory }}/keyfullchain.pem"
 
 # at maximun one of is used
-reload_command: "systemctl reload-or-restart {{ global_nginx_service_name }}"
+reload_command: "systemctl reload-or-restart {{ global_nginx_service_name | quote }}"
 reload_commands:
   - "{{ reload_command }}"