diff --git a/python/packages/autogen-core/docs/src/user-guide/core-user-guide/components/model-clients.ipynb b/python/packages/autogen-core/docs/src/user-guide/core-user-guide/components/model-clients.ipynb
index 1e96c7de041e..6447c6ccb0c1 100644
--- a/python/packages/autogen-core/docs/src/user-guide/core-user-guide/components/model-clients.ipynb
+++ b/python/packages/autogen-core/docs/src/user-guide/core-user-guide/components/model-clients.ipynb
@@ -459,7 +459,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": null,
    "metadata": {},
    "outputs": [
     {