diff --git a/barcode.py b/barcode.py
index 4e6f9ce..85f32ce 100644
--- a/barcode.py
+++ b/barcode.py
@@ -86,4 +86,4 @@ def dmxcreate(value):
     
     # Return grayscale image with transparency
     img.putalpha(ImageOps.invert(img).convert('L'))
-    return img.convert('L')
+    return img.convert('LA')