diff --git a/docs/docs/use_cases/question_answering/code_understanding.ipynb b/docs/docs/use_cases/question_answering/code_understanding.ipynb
index 34a272421d1..f655417d591 100644
--- a/docs/docs/use_cases/question_answering/code_understanding.ipynb
+++ b/docs/docs/use_cases/question_answering/code_understanding.ipynb
@@ -128,6 +128,7 @@
     "    repo_path + \"/libs/langchain/langchain\",\n",
     "    glob=\"**/*\",\n",
     "    suffixes=[\".py\"],\n",
+    "    exclude=[\"**/non-utf8-encoding.py\"],\n",
     "    parser=LanguageParser(language=Language.PYTHON, parser_threshold=500),\n",
     ")\n",
     "documents = loader.load()\n",