diff --git a/photoshop-for-complete-beginners.org b/photoshop-for-complete-beginners.org
index e59a88e..33722b7 100644
--- a/photoshop-for-complete-beginners.org
+++ b/photoshop-for-complete-beginners.org
@@ -9,7 +9,7 @@
 
 ** [[./_subsections/chapter02.org][Lesson 02 - Master Layer]]
 ** [[./_subsections/chapter03.org][Lesson 03 - Opacity vs Fill]]
-[[./_subsections/chapter04.org][lesson 04 - Layer Mask]]
+** [[./_subsections/chapter04.org][lesson 04 - Layer Mask]]
 
 [[https://www.youtube.com/playlist?list=PLLlSBGLVsEPIFGSGw2zJ2K43V5vxMMMTE][full playlist]]