diff --git a/mlair/model_modules/model_class.py b/mlair/model_modules/model_class.py
index a603b466e4dab0dc30b6b6b22d10b6c27ee59767..07eaa1ec19fbd394ad0bffd262d2698ccfd81055 100644
--- a/mlair/model_modules/model_class.py
+++ b/mlair/model_modules/model_class.py
@@ -127,7 +127,7 @@ import keras
 import tensorflow as tf
 from mlair.model_modules.inception_model import InceptionModelBase
 from mlair.model_modules.flatten import flatten_tail
-from mlair.model_modules.advanced_paddings import PadUtils, Padding2D
+from mlair.model_modules.advanced_paddings import PadUtils, Padding2D, SymmetricPadding2D
 
 
 class AbstractModelClass(ABC):
@@ -648,7 +648,8 @@ class MyPaperModel(AbstractModelClass):
         # apply to model
         self.set_model()
         self.set_compile_options()
-        self.set_custom_objects(loss=self.compile_options["loss"], Padding2D=Padding2D)
+        self.set_custom_objects(loss=self.compile_options["loss"], SymmetricPadding2D=SymmetricPadding2D,
+                                LearningRateDecay=mlair.model_modules.keras_extensions.LearningRateDecay)
 
     def set_model(self):
         """
@@ -704,8 +705,6 @@ class MyPaperModel(AbstractModelClass):
         X_input = keras.layers.Input(shape=self._input_shape)
 
         pad_size = PadUtils.get_padding_for_same(first_kernel)
-        # X_in = adv_pad.SymmetricPadding2D(padding=pad_size)(X_input)
-        # X_in = inception_model.padding_layer("SymPad2D")(padding=pad_size, name="SymPad")(X_input)  # adv_pad.SymmetricPadding2D(padding=pad_size)(X_input)
         X_in = Padding2D("SymPad2D")(padding=pad_size, name="SymPad")(X_input)
         X_in = keras.layers.Conv2D(filters=first_filters,
                                    kernel_size=first_kernel,
@@ -748,7 +747,7 @@ class MyPaperModel(AbstractModelClass):
     def set_compile_options(self):
         self.optimizer = keras.optimizers.SGD(lr=self.initial_lr, momentum=0.9)
         self.compile_options = {"loss": [keras.losses.mean_squared_error, keras.losses.mean_squared_error],
-                                "metrics": ['mse', 'mea']}
+                                "metrics": ['mse', 'mae']}
 
 
 if __name__ == "__main__":