diff --git a/doc/classes/Input.xml b/doc/classes/Input.xml
index 642bb76e75ba..1e7b63ecceaf 100644
--- a/doc/classes/Input.xml
+++ b/doc/classes/Input.xml
@@ -399,8 +399,8 @@
- [b]Note:[/b] While [code skip-lint]amplitude[/code] expects a value between 0 and 1, -1 does the default amplitude for the device.
Vibrate the handheld device for the specified duration in milliseconds.
+ [param amplitude] is the strength of the vibration, as a value between [code]0.0[/code] and [code]1.0[/code]. If set to [code]-1.0[/code], the default vibration strength of the device is used.
[b]Note:[/b] This method is implemented on Android, iOS, and Web. It has no effect on other platforms.
[b]Note:[/b] For Android, [method vibrate_handheld] requires enabling the [code]VIBRATE[/code] permission in the export preset. Otherwise, [method vibrate_handheld] will have no effect.
[b]Note:[/b] For iOS, specifying the duration is only supported in iOS 13 and later.