diff --git a/tests/misc/test_sepdf.py b/tests/misc/test_sepdf.py
index b8daa35f5..0caa92822 100644
--- a/tests/misc/test_sepdf.py
+++ b/tests/misc/test_sepdf.py
@@ -53,7 +53,8 @@ class SepDF(unittest.TestCase):
         # it will not raise error, and df will be an empty dataframe
 
         del sdf["g1"]
-        del sdf["g2"] # sdf should support deleting all the columns
+        del sdf["g2"]  # sdf should support deleting all the columns
+
 
 if __name__ == "__main__":
     unittest.main()