diff --git a/homeassistant/components/switch/wemo.py b/homeassistant/components/switch/wemo.py
index 5cc3be0dbe9..820c0736c87 100644
--- a/homeassistant/components/switch/wemo.py
+++ b/homeassistant/components/switch/wemo.py
@@ -22,7 +22,10 @@ def setup_platform(hass, config, add_devices_callback, discovery_info=None):
     import pywemo.discovery as discovery
 
     if discovery_info is not None:
-        device = discovery.device_from_description(discovery_info[2], discovery_info[3])
+        location = discovery_info[2]
+        mac = discovery_info[3]
+        # pylint: disable=too-many-function-args
+        device = discovery.device_from_description(location, mac)
 
         if device:
             add_devices_callback([WemoSwitch(device)])