diff --git a/pywii/Alameda/Alameda.py b/pywii/Alameda/Alameda.py
index 36bf7bc..68834f8 100644
--- a/pywii/Alameda/Alameda.py
+++ b/pywii/Alameda/Alameda.py
@@ -1046,7 +1046,7 @@ class Brlyt(object):
 				atom.Flags2 = object.Flags2
 				atom.Material = object.Material
 				atom.unk = object.Unk
-				atom.MaterialCoords = sum(object.MaterialCoords,[])
+				atom.MaterialCoords = sum(object.MaterialCoords,())
 			data = atom.pack()
 			
 			if len(object.Children) > 0: