diff --git a/module2/exo4/exercice.ipynb b/module2/exo4/exercice.ipynb
index 1254812aede97d00b5d68805732ab9357cf9ce6c..0efda349640aa8d12f6a2910aa22fbec0f406072 100644
--- a/module2/exo4/exercice.ipynb
+++ b/module2/exo4/exercice.ipynb
@@ -27,7 +27,9 @@
     "hidePrompt": false
    },
    "source": [
-    "Exercise 3.2: had a weird error message when trying to execute the evaluation part:\n",
+    "# Unsolved problems \n",
+    "\n",
+    "## Exercise 3.2: had a weird error message when trying to execute the evaluation part:\n",
     "\n",
     "```\n",
     "---------------------------------------------------------------------------\n",
@@ -42,7 +44,7 @@
     "AssertionError: \n",
     "```\n",
     "\n",
-    "worked on it together with Eva diaz, trying to figure out what the problem was, but couldn't find any solution... "
+    "worked on it together with Eva Diaz, trying to figure out what the problem was, but couldn't find any solution... "
    ]
   },
   {