diff --git a/pytorch_lightning/root_module/model_saving.py b/pytorch_lightning/root_module/model_saving.py
index b06225db..818c1947 100644
--- a/pytorch_lightning/root_module/model_saving.py
+++ b/pytorch_lightning/root_module/model_saving.py
@@ -57,10 +57,8 @@ class TrainerIO(object):
             'global_step': self.global_step
         }
 
-        from pytorch_lightning.utils.debugging import ForkedPdb
-        ForkedPdb().set_trace()
         if self.checkpoint_callback is not None:
-            checkpoint['checkpoint_callback_best'] = self.checkpoint_callback_best.best
+            checkpoint['checkpoint_callback_best'] = self.checkpoint_callback.best
 
         if self.early_stop_callback is not None:
             checkpoint['early_stop_callback_wait'] = self.early_stop_callback.wait