diff --git a/doc/release_todo b/doc/release_todo
index 4561abf..c3927f7 100644
--- a/doc/release_todo
+++ b/doc/release_todo
@@ -1,3 +1,4 @@
+Update version number in nvtt/nvtt.h
 Update version number in nvimage/DirectDrawSurface.cpp
 Update version number in CMakeLists.txt
 Update version number in VERSION