diff --git a/docs/images/docker-piwigo.md b/docs/images/docker-piwigo.md
index e34eae73c..a415007d7 100644
--- a/docs/images/docker-piwigo.md
+++ b/docs/images/docker-piwigo.md
@@ -46,6 +46,10 @@ The architectures supported by this image are:
 
 To help you get started creating a container from this image you can either use docker-compose or the docker cli.
 
+!!! info
+
+    Unless a parameter is flaged as 'optional', it is *mandatory* and a value must be provided.
+
 ### docker-compose (recommended, [click here for more info](https://docs.linuxserver.io/general/docker-compose))
 
 ```yaml
@@ -89,7 +93,7 @@ Containers are configured using parameters passed at runtime (such as those abov
 
 | Parameter | Function |
 | :----: | --- |
-| `80` | Application WebUI |
+| `80:80` | Application WebUI |
 
 ### Environment Variables (`-e`)