diff --git a/recopytex/df_marks_manip.py b/recopytex/df_marks_manip.py
index 96c7593..ed194fa 100644
--- a/recopytex/df_marks_manip.py
+++ b/recopytex/df_marks_manip.py
@@ -4,7 +4,7 @@
 import pandas as pd
 import numpy as np
 from math import ceil, floor
-from .config import COLUMNS, VALIDSCORE
+from .config import COLUMNS
 
 """
 Functions for manipulate score dataframes