diff --git a/modules/util/util.py b/modules/util/util.py
index 4ccd3ac2538bfff552a78ecb2827fe322aa3c395..5831c5ba10b7fe313bd763f78d1efc1515db735c 100644
--- a/modules/util/util.py
+++ b/modules/util/util.py
@@ -884,6 +884,7 @@ def write_cld_prods_file_nc4(clvrx_str_time, outfile_name, cloud_fraction, cloud
         var_dim_list = [time_dim_name, dim_1_name, dim_0_name]
 
     cld_frac_ds = rootgrp.createVariable('cloud_fraction', 'i1', var_dim_list)
+    cld_frac_ds.setncattr('long_name', 'FCNN inferred cloud fraction')
     cld_frac_ds.setncattr('coordinates', geo_coords)
     cld_frac_ds.setncattr('grid_mapping', 'Projection')
     cld_frac_ds.setncattr('missing', -1)