diff --git a/tests/integration/observability/test_arize_otel_v2_openinference_family.py b/tests/integration/observability/test_arize_otel_v2_openinference_family.py
index 242b7bfe8c1..19df3758653 100644
--- a/tests/integration/observability/test_arize_otel_v2_openinference_family.py
+++ b/tests/integration/observability/test_arize_otel_v2_openinference_family.py
@@ -93,6 +93,7 @@ _LANGFUSE_B3_KEYS: Final = frozenset(
         "langfuse.observation.output",
         "langfuse.observation.type",
         "langfuse.observation.usage_details",
+        "langfuse.trace.name",
         "litellm.api_key.hash",
         "litellm.call_id",
         "litellm.call_type",