diff --git a/lm_eval/models/ibm_watsonx_ai.py b/lm_eval/models/ibm_watsonx_ai.py
index 7017184ffc..6f6a09c170 100644
--- a/lm_eval/models/ibm_watsonx_ai.py
+++ b/lm_eval/models/ibm_watsonx_ai.py
@@ -158,7 +158,7 @@ def __init__(
         project_id = watsonx_credentials.get("project_id", None)
         deployment_id = watsonx_credentials.get("deployment_id", None)
         client.set.default_project(project_id)
-        self.generate_params = generate_params
+        self.generate_params = generate_params or {}
         self.model = ModelInference(
             model_id=model_id,
             deployment_id=deployment_id,
@@ -167,12 +167,6 @@ def __init__(
         )
         self._model_id = model_id
 
-    def dump_parameters(self):
-        """
-        Dumps the model's parameters into a serializable format.
-        """
-        return self._parameters.model_dump()
-
     @staticmethod
     def _has_stop_token(response_tokens: List[str], context_tokens: List[str]) -> bool:
         """