diff --git a/prompt_evaluations/08_prompt_foo_model_graded/lesson.ipynb b/prompt_evaluations/08_prompt_foo_model_graded/lesson.ipynb
index 8bac09c..61ff19e 100644
--- a/prompt_evaluations/08_prompt_foo_model_graded/lesson.ipynb
+++ b/prompt_evaluations/08_prompt_foo_model_graded/lesson.ipynb
@@ -41,7 +41,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Mdel-graded evals with promptfoo\n",
+    "## Model-graded evals with promptfoo\n",
     "\n",
     "As with most things in promptfoo, there are multiple valid approaches to writing model-graded evaluations.  In this lesson we'll see the simplest pattern: utilizing built-in assertions.  In the next lesson, we'll see how to write our own custom model-graded assertion functions.\n",
     "\n",