diff --git a/docs/images/docker-mariadb.md b/docs/images/docker-mariadb.md
index 3030f4d0f..6d3da68d1 100644
--- a/docs/images/docker-mariadb.md
+++ b/docs/images/docker-mariadb.md
@@ -103,6 +103,10 @@ mariadb-upgrade -u root -p<PASSWORD>
 
 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
@@ -154,7 +158,7 @@ Containers are configured using parameters passed at runtime (such as those abov
 
 | Parameter | Function |
 | :----: | --- |
-| `3306` | MariaDB listens on this port. |
+| `3306:3306` | MariaDB listens on this port. |
 
 ### Environment Variables (`-e`)