diff --git a/module2/exo1/toy_notebook_fr.ipynb b/module2/exo1/toy_notebook_fr.ipynb
index 15532048173c5f35d7a925ecf65f191378d36dd1..ecdbabacace6ec3af058e88cf5e3848b3068d87b 100644
--- a/module2/exo1/toy_notebook_fr.ipynb
+++ b/module2/exo1/toy_notebook_fr.ipynb
@@ -78,7 +78,8 @@
    "source": [
     "np.random.seed(seed=42)\n",
     "N = 10000\n",
-    "x = np.random.uniform(size=N, low=0, high=1)"
+    "x = np.random.uniform(size=N, low=0, high=1)\n",
+    "theta = np.random.uniform(size=N, low=0, high=pi/2)"
    ]
   },
   {