diff --git a/roles/vnstat/defaults/main.yml b/roles/vnstat/defaults/main.yml
index 5a6c833868..36b069d81d 100644
--- a/roles/vnstat/defaults/main.yml
+++ b/roles/vnstat/defaults/main.yml
@@ -43,7 +43,7 @@ vnstat_dns_proxy: "{{ dns.proxied }}"
 # Traefik
 ################################
 
-vnstat_traefik_sso_middleware: ""
+vnstat_traefik_sso_middleware: "{{ traefik_default_sso_middleware }}"
 vnstat_traefik_middleware_default: "{{ traefik_default_middleware }}"
 vnstat_traefik_middleware_custom: ""
 vnstat_traefik_certresolver: "{{ traefik_default_certresolver }}"