diff --git a/cobra/preprocessing/preprocessor.py b/cobra/preprocessing/preprocessor.py
index 3338ec4..9ecfa50 100644
--- a/cobra/preprocessing/preprocessor.py
+++ b/cobra/preprocessing/preprocessor.py
@@ -172,8 +172,7 @@ class encapsulating CategoricalDataProcessor,
 
         target_encoder = TargetEncoder(weight, imputation_strategy)
 
-        return cls(model_type,
-                   categorical_data_processor, discretizer, target_encoder)
+        return cls(categorical_data_processor, discretizer, target_encoder)
 
     @classmethod
     def from_pipeline(cls, pipeline: dict):
@@ -211,8 +210,7 @@ def from_pipeline(cls, pipeline: dict):
         target_encoder = TargetEncoder()
         target_encoder.set_attributes_from_dict(pipeline["target_encoder"])
 
-        return cls(model_type,
-                   categorical_data_processor, discretizer, target_encoder,
+        return cls(categorical_data_processor, discretizer, target_encoder,
                    is_fitted=pipeline["_is_fitted"])
 
     def fit(self, train_data: pd.DataFrame, continuous_vars: list,