diff --git a/todo.txt b/todo.txt
index e65c099..7a29338 100644
--- a/todo.txt
+++ b/todo.txt
@@ -7,6 +7,9 @@ features:
 - Helper functions for e.g. retrieving and caching UV coords etc. Maybe these
   should be in a separate file?
 
+- objtool: An option to parse material groups and generate an array of 
+  per-triangle material indices.
+
 - PC == 2 (and possibly 1) could likely be accelerated by not using interpolate
   functions, but rather FastLerStates for the values recomputed after each
   row segment.                                             DONE (doesn't work