diff --git a/docs/docs/how_to/qa_per_user.ipynb b/docs/docs/how_to/qa_per_user.ipynb
index acead6ed591..20dc9f0ee00 100644
--- a/docs/docs/how_to/qa_per_user.ipynb
+++ b/docs/docs/how_to/qa_per_user.ipynb
@@ -228,7 +228,7 @@
     "# highlight-next-line\n",
     "def retrieve(state: State, config: RunnableConfig):\n",
     "    # highlight-next-line\n",
-    "    retrieved_docs = configurable_retriever.invoke(state[\"question\"])\n",
+    "    retrieved_docs = configurable_retriever.invoke(state[\"question\"], config)\n",
     "    return {\"context\": retrieved_docs}\n",
     "\n",
     "\n",