diff --git a/sklearn_questions.py b/sklearn_questions.py
index 7f7fa5a..e483cac 100644
--- a/sklearn_questions.py
+++ b/sklearn_questions.py
@@ -203,7 +203,6 @@ def split(self, X, y, groups=None):
         idx_test : ndarray
             The testing set indices for that split.
         """
-
         if (X.reset_index().loc[:, self.time_col].dtype != "datetime64[ns]"):
             raise ValueError(f"{self.time_col} must be of type datetime.")