diff --git a/libs/core/tests/unit_tests/utils/test_function_calling.py b/libs/core/tests/unit_tests/utils/test_function_calling.py
index 464baceb343..f75ae304937 100644
--- a/libs/core/tests/unit_tests/utils/test_function_calling.py
+++ b/libs/core/tests/unit_tests/utils/test_function_calling.py
@@ -497,7 +497,7 @@ def test_convert_to_openai_function_nested_strict() -> None:
     assert actual == expected
 
 
-def test_convert_to_openai_function_strict_union_type() -> None:
+def test_convert_to_openai_function_strict_union_of_objects_arg_type() -> None:
     class NestedA(BaseModel):
         foo: str