diff --git a/docs/content/reference/routing-configuration/other-providers/docker.md b/docs/content/reference/routing-configuration/other-providers/docker.md
index a17ae2a09..4cc633bd1 100644
--- a/docs/content/reference/routing-configuration/other-providers/docker.md
+++ b/docs/content/reference/routing-configuration/other-providers/docker.md
@@ -285,6 +285,15 @@ you'd add the label `traefik.http.services.<name-of-your-choice>.loadbalancer.pa
      "traefik.http.services.myservice.loadbalancer.server.scheme=http"
     ```
 
+??? info "`traefik.http.services.<service_name>.loadbalancer.server.url`"
+
+    Defines the service URL.
+    This option cannot be used in combination with `port` or `scheme` definition.
+
+    ```yaml
+    traefik.http.services.<service_name>.loadbalancer.server.url=http://foobar:8080
+    ```
+
 ??? info "`traefik.http.services.<service_name>.loadbalancer.serverstransport`"
 
     Allows to reference a ServersTransport resource that is defined either with the File provider or the Kubernetes CRD one.
diff --git a/docs/content/reference/routing-configuration/other-providers/swarm.md b/docs/content/reference/routing-configuration/other-providers/swarm.md
index 427484d8d..2885b1e48 100644
--- a/docs/content/reference/routing-configuration/other-providers/swarm.md
+++ b/docs/content/reference/routing-configuration/other-providers/swarm.md
@@ -301,6 +301,15 @@ you'd add the label `traefik.http.services.<name-of-your-choice>.loadbalancer.pa
     - "traefik.http.services.myservice.loadbalancer.server.scheme=http"
     ```
 
+??? info "`traefik.http.services.<service_name>.loadbalancer.server.url`"
+
+    Defines the service URL.
+    This option cannot be used in combination with `port` or `scheme` definition.
+
+    ```yaml
+    traefik.http.services.<service_name>.loadbalancer.server.url=http://foobar:8080
+    ```
+
 ??? info "`traefik.http.services.<service_name>.loadbalancer.server.weight`"
 
     Overrides the default weight.