diff --git a/toc.org b/toc.org
index c5a474f..496264d 100644
--- a/toc.org
+++ b/toc.org
@@ -14,3 +14,4 @@ https://www.udemy.com/course/jumpstart-to-2d-game-development-godot-4-for-beginn
 *** [[./_subsections/sec03/lesson-02.org][Lesson 02 | Game Scene]]
 *** [[./_subsections/sec03/lesson-03.org][Lesson 03 | Paddle Scene]]
 *** [[./_subsections/sec03/lesson-04.org][Lesson 04 | Gem Scene]]
+*** [[./_subsections/sec03/lesson-05.org][Lesson 05 | Windows and Viewports]]