diff --git a/module2/README.md b/module2/README.md
index 4da59cf7dee4c1006fa3767c9a0b9bee689dc044..6a2e104f89011ecc2b6686ea50e713b54b144d45 100644
--- a/module2/README.md
+++ b/module2/README.md
@@ -10,6 +10,7 @@ Mon ordinateur m’indique que π vaut approximativement
 
 
 
+set.seed(42)