diff --git a/module2/exo1/toy_notebook_fr.ipynb b/module2/exo1/toy_notebook_fr.ipynb
index c2670333436049c674b4f6e32b6626abfa0349fb..9dbd128087d40387c4d6523ea30a58b7dcd40fec 100644
--- a/module2/exo1/toy_notebook_fr.ipynb
+++ b/module2/exo1/toy_notebook_fr.ipynb
@@ -1,10 +1,15 @@
 {
  "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": []
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "#** A propos du calcul de $\\pi$**"
+    "# **1 A propos du calcul de $\\pi$**"
    ]
   }
  ],