diff --git a/bgcval2/functions/globalVolMean.py b/bgcval2/functions/globalVolMean.py
index b267a779..310de500 100644
--- a/bgcval2/functions/globalVolMean.py
+++ b/bgcval2/functions/globalVolMean.py
@@ -33,14 +33,6 @@
 from bgcval2.functions.standard_functions import choose_best_var 
 from bgcval2.functions.standard_functions import find_best_var
 
-#def calc_vol(nc):
-#    """
-#    Calculate volume from the (grid-T) netcdf file.
-#    """
-#    area = nc.variables['area'][:]
-#    thkcello = nc.variables['thkcello'][:]
-#    area = area[None, None,:, :]
-#    return thkcello * area
 
 def calc_vol(nc):
     """
@@ -53,6 +45,7 @@ def calc_vol(nc):
     area = area[None, None,:, :]
     return thkcello * area
 
+
 def globalVolumeMean(nc, keys, **kwargs):
     """
     Calculate the global volume mean.