diff --git a/lib/outlook/internal_tree.ex b/lib/outlook/internal_tree.ex
index 566bd12..cf55a88 100644
--- a/lib/outlook/internal_tree.ex
+++ b/lib/outlook/internal_tree.ex
@@ -69,7 +69,6 @@ defmodule Outlook.InternalTree do
 
   def get_tunit_ids(tree) do
     InternalTree.collect_tunit_ids(tree)
-    # |> List.flatten()
   end
 
   def modify_tunits(tree, modifier, tu_ids) do