diff --git a/README.md b/README.md
index e5d9ac5..568c473 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ docker_matomo_rp_cert: LE
 docker_matomo_rp_docker_host: machine.domaine.local
 docker_matomo_rp_access_policy: OpenAccessPolicy
 docker_matomo_rp_indexing: BlockCrawlerIndexing
-docker_matomo_rp_waf: On
+docker_matomo_rp_waf: "On"
 ```
 
 | Option                         | Valeur par défaut | Description                                                                               |