diff --git a/docs/DOCUMENTATION.md b/docs/DOCUMENTATION.md
index 028ca98..d070167 100644
--- a/docs/DOCUMENTATION.md
+++ b/docs/DOCUMENTATION.md
@@ -379,4 +379,11 @@ If true, the tool won't check for updates
 | --- | --- | --- | --- | --- | ---| 
 | Both | `--help ` | `boolean` | `No`| `-h` | `NaN` |
 
-Show the help output
\ No newline at end of file
+Show the help output
+### GUI
+#### `--port`
+| **Service** | **Usage** | **Type** | **Required** | **Alias** |  **Default** |**cli-default Entry**
+| --- | --- | --- | --- | --- | --- | ---| 
+| Both | `--port ${port}` | `number` | `No`| `NaN` | `3000`| `NaN` |
+
+Set the port for the GUI server
\ No newline at end of file