diff --git a/notebooks/machine-learning/21.a-linear-model-by-hand.ipynb b/notebooks/machine-learning/21.a-linear-model-by-hand.ipynb
index 9a7946d20329f3df125f2ddcc64b6121309eeddf..b8746b8d5904392e78a51c47a97f820b74050c9a 100644
--- a/notebooks/machine-learning/21.a-linear-model-by-hand.ipynb
+++ b/notebooks/machine-learning/21.a-linear-model-by-hand.ipynb
@@ -572,7 +572,7 @@
     "\n",
     "b = intercept(m, data)\n",
     "\n",
-    "print(f\"L’ordonnée à l’origine vaut : {m}\")"
+    "print(f\"L’ordonnée à l’origine vaut : {b}\")"
    ]
   },
   {