diff --git a/definitions/boot.def b/definitions/boot.def
index 94d8bd159..a0b540ef0 100644
--- a/definitions/boot.def
+++ b/definitions/boot.def
@@ -38,7 +38,6 @@ transient dummy = 1 :hidden;
 constant unknown="unknown" : hidden;
 constant oneConstant=1 : hidden;
 constant thousand=1000 :hidden;
-constant hundred=100 :hidden;
 constant oneMillionConstant=1000000 : hidden;
 constant grib1divider = 1000 : hidden;
 meta offset offset_file() : hidden;
diff --git a/definitions/grib2/boot.def b/definitions/grib2/boot.def
index 289c4d48f..bb0030c66 100644
--- a/definitions/grib2/boot.def
+++ b/definitions/grib2/boot.def
@@ -11,7 +11,6 @@
 # See http://www.wmo.int/pages/prog/www/WMOCodes/WMO306_vI2/LatestVERSION/LatestVERSION.html
 constant tablesVersionLatest = 21 : edition_specific;
 
-constant one = 1 : hidden ;
 constant million = 1000000 : hidden;
 constant grib2divider   = 1000000;
 alias extraDimensionPresent=zero;