diff --git a/definitions/grib2/tables/local/ecmf/1/4.230.table b/definitions/grib2/tables/local/ecmf/1/4.230.table
index cf64595dd..b256f0afa 100644
--- a/definitions/grib2/tables/local/ecmf/1/4.230.table
+++ b/definitions/grib2/tables/local/ecmf/1/4.230.table
@@ -1,11 +1,11 @@
 # Code table 4.230 - Atmospheric chemical constituent type for ECMWF
+65524 65524 Stratospheric Ozone
+65525 65525 Nitrate aerosol
 65526 65526 Condensable gas type 1
 65527 65527 Condensable gas type 2a
 65528 65528 Condensable gas type 2b
 65529 65529 Toluene and less reactive aromatics
 65530 65530 Xylene and more reactive aromatics
-65531 65531 Stratospheric Ozone
-65532 65532 Nitrate aerosol
 65531 65531 Biomass burning volatile organic compounds
 65532 65532 Anthropogenic volatile organic compounds
 65533 65533 Nitrate Coarse Mode