diff --git a/pytorch_lightning/callbacks/model_checkpoint.py b/pytorch_lightning/callbacks/model_checkpoint.py
index 2b268d0ec73591..7916d81874764b 100644
--- a/pytorch_lightning/callbacks/model_checkpoint.py
+++ b/pytorch_lightning/callbacks/model_checkpoint.py
@@ -474,4 +474,4 @@ def to_json(self, save_path=None):
         if save_path is None:
             save_path = os.path.join(self.dirpath, "best_k_models.json")
         with open(save_path, "w") as f:
-            json.dump(best_k, f, indent=0)
\ No newline at end of file
+            json.dump(best_k, f, indent=0)