diff --git a/2021_06_EPW/README.md b/2021_06_EPW/README.md
index c7042d7..ebbd6b4 100644
--- a/2021_06_EPW/README.md
+++ b/2021_06_EPW/README.md
@@ -6,7 +6,7 @@ This folder contains the material used for the Wannier90 hands-on sessions of th
 You will find, a [PDF document](wannier-tutorial.pdf) for the session, and in each subfolder, the input files for the 5 exercises:
 
 - Exercise 1: [Silicon valence bands](ex1/)
-- Exercise 2: [Silicon valence and conduction bands](ex2/)
+- Exercise 2: Silicon valence and conduction bands (please follow the [PDF document](wannier-tutorial.pdf) to generate the input files on your own)
 - Exercise 3: [Lead Fermi surface and band structure](ex3/)
 - Exercise 4: [Lead SCDM parameters from projectability](ex4/)
 - Exercise 5: [BaTiO3 ferroelectricity](ex5/)