diff --git a/homeassistant/components/webostv/media_player.py b/homeassistant/components/webostv/media_player.py
index 0e98bd8e703..99df9fd17ce 100644
--- a/homeassistant/components/webostv/media_player.py
+++ b/homeassistant/components/webostv/media_player.py
@@ -316,7 +316,7 @@ class LgWebOSMediaPlayerEntity(MediaPlayerDevice):
     @cmd
     async def async_set_volume_level(self, volume):
         """Set volume level, range 0..1."""
-        tv_volume = volume * 100
+        tv_volume = int(round(volume * 100))
         await self._client.set_volume(tv_volume)
 
     @cmd