diff --git a/adafruit_macropad.py b/adafruit_macropad.py
index 98f890c..a1b33fa 100755
--- a/adafruit_macropad.py
+++ b/adafruit_macropad.py
@@ -925,7 +925,7 @@ def __init__(self, pixels, order=(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11)):
     def __setitem__(self, index, val):
         if isinstance(index, slice):
             for val_i, in_i in enumerate(range(*index.indices(self._num_pixels))):
-                self._pixels[in_i] = self._order[val_i]
+                self._pixels[self._order[in_i]] = val[val_i]
         else:
             self._pixels[self._order[index]] = val