diff --git a/nobrainer/models/__init__.py b/nobrainer/models/__init__.py
index 8dd75b44..a4842bc7 100644
--- a/nobrainer/models/__init__.py
+++ b/nobrainer/models/__init__.py
@@ -55,6 +55,6 @@ def get(name):
 def available_models():
     return list(_models)
 
+
 def list_available_models():
     pprint(available_models())
-
diff --git a/nobrainer/processing/segmentation.py b/nobrainer/processing/segmentation.py
index ff0519df..7ba9a32a 100644
--- a/nobrainer/processing/segmentation.py
+++ b/nobrainer/processing/segmentation.py
@@ -133,6 +133,7 @@ def predict(self, x, batch_size=1, normalizer=None):
             batch_size=batch_size,
             normalizer=normalizer,
         )
+
     @classmethod
     def list_available_models(cls):
         list_available_models()