diff --git a/lifx/group.py b/lifx/group.py
index 5795aaa..c319111 100644
--- a/lifx/group.py
+++ b/lifx/group.py
@@ -62,7 +62,7 @@ def fade_color(self, newcolor, duration=DEFAULT_DURATION):
         """
         Change the color of the entire group at once.
 
-        :param power: The color to transition every bulb in the group to.
+        :param newcolor: The color to transition every bulb in the group to.
         :param duration: The amount of time to perform the transition over.
         """
         for l in self.members: