diff --git a/sklearn_questions.py b/sklearn_questions.py
index 5811ce9..1ca1fbe 100644
--- a/sklearn_questions.py
+++ b/sklearn_questions.py
@@ -174,7 +174,6 @@ def get_n_splits(self, X, y=None, groups=None):
         n_splits : int
             The number of splits.
         """
-
         if self.time_col == "index":
             if not is_datetime64_any_dtype(X.index):
                 raise ValueError("it is not datetime")