diff --git a/docs/docs/tutorials/introduction.ipynb b/docs/docs/tutorials/introduction.ipynb
index 39cfde71a..1afbaefc5 100644
--- a/docs/docs/tutorials/introduction.ipynb
+++ b/docs/docs/tutorials/introduction.ipynb
@@ -1153,6 +1153,7 @@
     ")\n",
     "graph_builder.add_edge(\"tools\", \"chatbot\")\n",
     "graph_builder.set_entry_point(\"chatbot\")\n",
+    "memory = MemorySaver()\n",
     "graph = graph_builder.compile(checkpointer=memory)\n",
     "```\n",
     "</pre>\n",