diff --git a/Metallicity_Stack_Commons/column_names.py b/Metallicity_Stack_Commons/column_names.py
index 66a3d33..e4e3d8b 100644
--- a/Metallicity_Stack_Commons/column_names.py
+++ b/Metallicity_Stack_Commons/column_names.py
@@ -26,6 +26,7 @@
 # Dictionary containing filenames
 filename_dict = dict()
 filename_dict['bin_info'] = 'bin_info.tbl'
+filename_dict['bin_valid'] = 'bin_validation.tbl'
 filename_dict['bin_fit'] = 'bin_emission_line_fit.tbl'
 filename_dict['bin_fit_rev'] = filename_dict['bin_fit'].replace('.tbl', '.revised.tbl')
 filename_dict['bin_derived_prop'] = 'bin_derived_properties.tbl'