diff --git a/modules/util/acspo_validate.py b/modules/util/acspo_validate.py
index 33d30ae14d18b73f09125533f2955f16e471ef28..4569e426a2e4c61dd537da75d1fe1b34ea252dbf 100644
--- a/modules/util/acspo_validate.py
+++ b/modules/util/acspo_validate.py
@@ -141,7 +141,7 @@ def acspo_validate(oper_file, cspp_file, rel_tol=0.001, deg_tol=0.0002, outfile_
     if outfile_nc is not None:
         xarray_data.to_netcdf(outfile_nc)
 
-    print('fraction approx equal: ',
+    print('fraction SSTs approx equal: ',
           np.sum(np.isclose(valid_sst_cspp, valid_sst_oper, rtol=rel_tol))/np.sum(keep))
 
     h5f_oper.close()