diff --git a/homeassistant/components/rainmachine/__init__.py b/homeassistant/components/rainmachine/__init__.py
index 38672dbc23b..22fc427ccce 100644
--- a/homeassistant/components/rainmachine/__init__.py
+++ b/homeassistant/components/rainmachine/__init__.py
@@ -11,8 +11,8 @@ import voluptuous as vol
 
 from homeassistant.const import (
     ATTR_ATTRIBUTION, CONF_BINARY_SENSORS, CONF_IP_ADDRESS, CONF_PASSWORD,
-    CONF_PORT, CONF_SENSORS, CONF_SSL, CONF_MONITORED_CONDITIONS,
-    CONF_SWITCHES)
+    CONF_PORT, CONF_SCAN_INTERVAL, CONF_SENSORS, CONF_SSL,
+    CONF_MONITORED_CONDITIONS, CONF_SWITCHES)
 from homeassistant.helpers import (
     aiohttp_client, config_validation as cv, discovery)
 from homeassistant.helpers.dispatcher import async_dispatcher_send
@@ -107,6 +107,8 @@ CONFIG_SCHEMA = vol.Schema(
             vol.Required(CONF_PASSWORD): cv.string,
             vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
             vol.Optional(CONF_SSL, default=DEFAULT_SSL): cv.boolean,
+            vol.Optional(CONF_SCAN_INTERVAL, default=DEFAULT_SCAN_INTERVAL):
+                cv.time_period,
             vol.Optional(CONF_BINARY_SENSORS, default={}):
                 BINARY_SENSOR_SCHEMA,
             vol.Optional(CONF_SENSORS, default={}): SENSOR_SCHEMA,
@@ -159,7 +161,7 @@ async def async_setup(hass, config):
         await rainmachine.async_update()
         async_dispatcher_send(hass, SENSOR_UPDATE_TOPIC)
 
-    async_track_time_interval(hass, refresh_sensors, DEFAULT_SCAN_INTERVAL)
+    async_track_time_interval(hass, refresh_sensors, conf[CONF_SCAN_INTERVAL])
 
     async def start_program(service):
         """Start a particular program."""