diff --git a/source/tests/pt/test_change_bias.py b/source/tests/pt/test_change_bias.py
index a3cf3edbbc..58fd953656 100644
--- a/source/tests/pt/test_change_bias.py
+++ b/source/tests/pt/test_change_bias.py
@@ -87,6 +87,7 @@ def setUp(self) -> None:
         self.model_path_user_bias = Path(current_path) / (
             model_name + "user_bias" + ".pt"
         )
+        self.loss_params = self.config["loss"]
 
     def test_change_bias_with_data(self) -> None:
         run_dp(
@@ -96,7 +97,10 @@ def test_change_bias_with_data(self) -> None:
             str(self.model_path_data_bias), map_location=DEVICE, weights_only=True
         )
         model_params = state_dict["model"]["_extra_state"]["model_params"]
-        model_for_wrapper = get_model_for_wrapper(model_params)
+        model_for_wrapper = get_model_for_wrapper(
+            model_params,
+            _loss_params=self.loss_params,
+        )
         wrapper = ModelWrapper(model_for_wrapper)
         wrapper.load_state_dict(state_dict["model"])
         updated_bias = wrapper.model["Default"].get_out_bias()
@@ -119,7 +123,10 @@ def test_change_bias_with_data_sys_file(self) -> None:
             str(self.model_path_data_file_bias), map_location=DEVICE, weights_only=True
         )
         model_params = state_dict["model"]["_extra_state"]["model_params"]
-        model_for_wrapper = get_model_for_wrapper(model_params)
+        model_for_wrapper = get_model_for_wrapper(
+            model_params,
+            _loss_params=self.loss_params,
+        )
         wrapper = ModelWrapper(model_for_wrapper)
         wrapper.load_state_dict(state_dict["model"])
         updated_bias = wrapper.model["Default"].get_out_bias()
@@ -140,7 +147,10 @@ def test_change_bias_with_user_defined(self) -> None:
             str(self.model_path_user_bias), map_location=DEVICE, weights_only=True
         )
         model_params = state_dict["model"]["_extra_state"]["model_params"]
-        model_for_wrapper = get_model_for_wrapper(model_params)
+        model_for_wrapper = get_model_for_wrapper(
+            model_params,
+            _loss_params=self.loss_params,
+        )
         wrapper = ModelWrapper(model_for_wrapper)
         wrapper.load_state_dict(state_dict["model"])
         updated_bias = wrapper.model["Default"].get_out_bias()