diff --git a/docs/docs/tutorials/chatbot.ipynb b/docs/docs/tutorials/chatbot.ipynb
index ec24551903e..9a64507f546 100644
--- a/docs/docs/tutorials/chatbot.ipynb
+++ b/docs/docs/tutorials/chatbot.ipynb
@@ -438,7 +438,7 @@
     "app = workflow.compile(checkpointer=MemorySaver())\n",
     "\n",
     "# Async invocation:\n",
-    "output = await app.ainvoke({\"messages\": input_messages}, config):\n",
+    "output = await app.ainvoke({\"messages\": input_messages}, config)\n",
     "output[\"messages\"][-1].pretty_print()\n",
     "```\n",
     "\n",