diff --git a/providers/google/src/airflow/providers/google/cloud/hooks/vertex_ai/ray.py b/providers/google/src/airflow/providers/google/cloud/hooks/vertex_ai/ray.py
index 76d94299d4967..de722ed595926 100644
--- a/providers/google/src/airflow/providers/google/cloud/hooks/vertex_ai/ray.py
+++ b/providers/google/src/airflow/providers/google/cloud/hooks/vertex_ai/ray.py
@@ -52,7 +52,7 @@ def __encode_value(value: Any) -> Any:
                 return [__encode_value(nested_value) for nested_value in value]
             if not isinstance(value, dict) and isinstance(value, MutableMapping):
                 return {key: __encode_value(nested_value) for key, nested_value in dict(value).items()}
-            if dataclasses.is_dataclass(value):
+            if dataclasses.is_dataclass(value) and not isinstance(value, type):
                 return dataclasses.asdict(value)
             return value