diff --git a/actions/actiontsc.h b/actions/actiontsc.h
index 37d1ffa..0aa5c15 100644
--- a/actions/actiontsc.h
+++ b/actions/actiontsc.h
@@ -144,6 +144,13 @@ template<class D> MString ActionTSC::DoAction(const CLArgs& args, D& ds)
    if(ret != NC_NOERR) return "Can't write long_name attribute of " + vname + " variable in the netcdf file";
   }
 
+  text = data.Unit();
+  if(text.Exist())
+  {
+   ret = nc_put_att_text(ncid, vid, "units", text.Len() + 1, text.Buf());
+   if(ret != NC_NOERR) return "Can't write units attribute of " + vname + " variable in the netcdf file";
+  }
+
   ret = nc_put_att_float(ncid, vid, "_FillValue", NC_FLOAT, 1, &fill);
   if(ret != NC_NOERR) return "Can't write _FillValue attribute of " + vname + " variable in the netcdf file";