diff --git a/homeassistant/components/switch/rainmachine.py b/homeassistant/components/switch/rainmachine.py
index 94ac98c1737..9425b61f0e5 100644
--- a/homeassistant/components/switch/rainmachine.py
+++ b/homeassistant/components/switch/rainmachine.py
@@ -1,6 +1,5 @@
 """Implements a RainMachine sprinkler controller for Home Assistant."""
 
-import asyncio
 from datetime import timedelta
 from logging import getLogger
 
@@ -53,8 +52,7 @@ PLATFORM_SCHEMA = vol.Schema(
     extra=vol.ALLOW_EXTRA)
 
 
-@asyncio.coroutine
-def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
+def setup_platform(hass, config, add_devices, discovery_info=None):
     """Set this component up under its platform."""
     import regenmaschine as rm
 
@@ -114,7 +112,7 @@ def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
                     zone_run_time,
                     device_name=rainmachine_device_name, ))
 
-        async_add_devices(entities)
+        add_devices(entities)
     except rm.exceptions.HTTPError as exc_info:
         _LOGGER.error('An HTTP error occurred while talking with RainMachine')
         _LOGGER.debug(exc_info)