diff --git a/source/_components/media_player.onkyo.markdown b/source/_components/media_player.onkyo.markdown
index 13a50152dc..19854cfe60 100644
--- a/source/_components/media_player.onkyo.markdown
+++ b/source/_components/media_player.onkyo.markdown
@@ -39,6 +39,10 @@ name:
   description: Name of the device. (*Required if host is specified*)
   required: false
   type: string
+max_volume:
+  description: Maximum volume. Defaults to 80.
+  required: false
+  type: number
 sources:
   description: A list of mappings from source to source name. Valid sources can be found below. A default list will be used if no source mapping is specified.
   required: false