diff --git a/edosl0util/cli/rdr2l0.py b/edosl0util/cli/rdr2l0.py
index 01afe33cc94399b948d880134eeee82b3aff0737..a7a2d810ff138a69650ef0acf2827357dacafdb4 100644
--- a/edosl0util/cli/rdr2l0.py
+++ b/edosl0util/cli/rdr2l0.py
@@ -37,7 +37,7 @@ def _do_dump(filepat, satellite, product, rdrs, start, end):
     product = 'P{}{}'.format(satellite_to_scid[satellite], product)
     for filepath in rdrs:
         LOG.info('dumping %s', filepath)
-        jpssrdr.write_rdr_datasets(filepath)
+        jpssrdr.write_rdr_datasets(filepath, skipfill=True)
 
     # alphanumeric sorting to bootstrap final sort
     inputs = sorted(glob.glob(filepat))
@@ -89,7 +89,7 @@ def spacecraft(satellite, rdrs, start, end):
     product = 'SPACECRAFT'
     for filepath in rdrs:
         LOG.info('dumping %s', filepath)
-        jpssrdr.write_rdr_datasets(filepath, ancillary=True)
+        jpssrdr.write_rdr_datasets(filepath, ancillary=True, skipfill=True)
 
     scid = satellite_to_scid[satellite]
     for apid in (0, 8, 11):