diff --git a/homeassistant/components/sensor/moon.py b/homeassistant/components/sensor/moon.py
index 75b8a1f72bd..0c57c98c0af 100644
--- a/homeassistant/components/sensor/moon.py
+++ b/homeassistant/components/sensor/moon.py
@@ -4,7 +4,6 @@ Support for tracking the moon phases.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/sensor.moon/
 """
-import asyncio
 import logging
 
 import voluptuous as vol
@@ -26,8 +25,8 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
 })
 
 
-@asyncio.coroutine
-def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
+async def async_setup_platform(
+        hass, config, async_add_devices, discovery_info=None):
     """Set up the Moon sensor."""
     name = config.get(CONF_NAME)
 
@@ -71,8 +70,7 @@ class MoonSensor(Entity):
         """Icon to use in the frontend, if any."""
         return ICON
 
-    @asyncio.coroutine
-    def async_update(self):
+    async def async_update(self):
         """Get the time and updates the states."""
         from astral import Astral