diff --git a/l2gv2/datasets/_base.py b/l2gv2/datasets/_base.py
index b78efa6..de9f43b 100644
--- a/l2gv2/datasets/_base.py
+++ b/l2gv2/datasets/_base.py
@@ -62,7 +62,7 @@ def _load_files(self):
             if self.edges["timestamp"].dtype == pl.Utf8:
                 self.edges = self.edges.with_columns(
                     pl.col("timestamp").str.to_datetime(self.timestamp_fmt)
-                ) 
+                )
 
         self.datelist = self.edges.select("timestamp").to_series().unique()