diff --git a/docs/content/routing/providers/docker.md b/docs/content/routing/providers/docker.md
index 46fa35f66..e19aafaa5 100644
--- a/docs/content/routing/providers/docker.md
+++ b/docs/content/routing/providers/docker.md
@@ -291,7 +291,7 @@ you'd add the label `traefik.http.services.<name-of-your-choice>.loadbalancer.pa
     See [health check](../services/index.md#health-check) for more information.
 
     ```yaml
-    - "traefik.http.services.myservice.loadbalancer.healthcheck.interval=10"
+    - "traefik.http.services.myservice.loadbalancer.healthcheck.interval=10s"
     ```
 
 ??? info "`traefik.http.services.<service_name>.loadbalancer.healthcheck.path`"