diff --git a/Metallicity_Stack_Commons/column_names.py b/Metallicity_Stack_Commons/column_names.py
index 2f5683f..6ef6681 100644
--- a/Metallicity_Stack_Commons/column_names.py
+++ b/Metallicity_Stack_Commons/column_names.py
@@ -4,3 +4,4 @@
 
 indv_names0 = ['ID', 'R23', 'O32']
 
+bin_mzevolve_names0 = ['logM_min', 'logM_max', 'logM_avg', 'logLHb', 'logLHb_min', 'logLHb_max']