diff --git a/libs/partners/huggingface/tests/integration_tests/test_standard.py b/libs/partners/huggingface/tests/integration_tests/test_standard.py
index f9180b4771..98a38ab7c5 100644
--- a/libs/partners/huggingface/tests/integration_tests/test_standard.py
+++ b/libs/partners/huggingface/tests/integration_tests/test_standard.py
@@ -69,6 +69,10 @@ class TestHuggingFaceEndpoint(ChatModelIntegrationTests):
     def test_structured_output_pydantic_2_v1(self, model: BaseChatModel) -> None:
         super().test_structured_output_pydantic_2_v1(model)
 
+    @pytest.mark.xfail(reason=("Not implemented"))
+    def test_structured_output_optional_param(self, model: BaseChatModel) -> None:
+        super().test_structured_output_optional_param(model)
+
     @pytest.mark.xfail(reason=("Not implemented"))
     def test_tool_message_histories_list_content(self, model: BaseChatModel) -> None:
         super().test_tool_message_histories_list_content(model)