diff --git a/scripts/data_extraction.py b/scripts/data_extraction.py
index 8a1c7cb..e0e656f 100755
--- a/scripts/data_extraction.py
+++ b/scripts/data_extraction.py
@@ -807,7 +807,7 @@ print('Now some more formatting:'
       , '\n===================================================================')
 
 # BEWARE hardcoding : only works as we are adding aa prop once for wt and once for mut
-#  in each lookup cycle 
+# in each lookup cycle 
 ncol_mutf_add = 3 # mut split into 3 cols
 ncol_aa_add = 2 # 2 aa prop add (wt & mut) in each mapping