diff --git a/pyicloud/services/findmyiphone.py b/pyicloud/services/findmyiphone.py
index 29cfb5e..60a98c0 100755
--- a/pyicloud/services/findmyiphone.py
+++ b/pyicloud/services/findmyiphone.py
@@ -58,7 +58,10 @@ class FindMyiPhoneServiceManager(object):
 
     def __getitem__(self, key):
         if isinstance(key, int):
-            key = self.keys()[key]
+            if six.PY3:
+                key = list(self.keys())[key]
+            else:
+                key = self.keys()[key]
         return self._devices[key]
 
     def __getattr__(self, attr):