diff --git a/docs/widgets/(Widget)-Custom.md b/docs/widgets/(Widget)-Custom.md
index f65c4e9..2eb589a 100644
--- a/docs/widgets/(Widget)-Custom.md
+++ b/docs/widgets/(Widget)-Custom.md
@@ -4,6 +4,7 @@
 |-----------------|---------|-------------------------------------------------------------------------|-----------------------------------------------------------------------------|
 | `label`         | string  | `"{data}"`                                | The format string for data |
 | `label_alt`     | string  | `"{data[city]} {data[region]}, {data[country]}"`    | Example of label alt. |
+| `label_max_length`          | int     | `None`                                                                     | The maximum length of the label. |
 | `class_name`    | string  | `"custom-info-widget"`                                                      | The CSS class name for the widget. |
 | `exec_options`  | dict    | `{'run_cmd': 'curl.exe https://ipinfo.io', 'run_interval': 120000, 'return_format': 'json', 'hide_empty: false'}` | Execution options for custom widget. |
 | `callbacks`     | dict    | `{'on_left': 'toggle_label', 'on_middle': 'exec cmd /c ncpa.cpl', 'on_right': 'exec cmd /c start https://ipinfo.io/{data[ip]} '}` | Callbacks for mouse events on the IP info widget. |
@@ -48,6 +49,7 @@ nvidia_temp:
 
 - **label**: The format string.
 - **label_alt**: The alternative format string.
+- **label_max_length**: The maximum length of the label. Minimum value is 1. Default is `None`.
 - **class_name**: The CSS class name for the widget.
 - **exec_options**: A dictionary specifying the execution options. The keys are `run_cmd`, `run_interval`, `return_format`, `hide_empty`. `return_format` can be `json` or `string`. If you run custom function which result empty data, you can set `hide_empty` to `true` to hide the widget.
 - **callbacks**: A dictionary specifying the callbacks for mouse events. The keys are `on_left`, `on_middle`, and `on_right`, and the values are the names of the callback functions.