diff --git a/definitions/boot.def b/definitions/boot.def
index 318f4eb69..94d8bd159 100644
--- a/definitions/boot.def
+++ b/definitions/boot.def
@@ -22,8 +22,6 @@ GRIBEX_boustrophedonic = getenv("ECCODES_GRIBEX_BOUSTROPHEDONIC","0")  :hidden;
 
 constant zero=0 : hidden;
 constant one=1 : hidden;
-constant two=1 : hidden;
-constant three=1 : hidden;
 constant hundred=100 : hidden;
 constant true="true" :hidden;
 constant false="false" : hidden;
diff --git a/definitions/grib1/boot.def b/definitions/grib1/boot.def
index 85f1c4010..dfa445cca 100644
--- a/definitions/grib1/boot.def
+++ b/definitions/grib1/boot.def
@@ -9,6 +9,8 @@
 
 constant ieeeFloats   = 0 : hidden, edition_specific;
 transient eps=0;
+constant two=1 : hidden;
+constant three=1 : hidden;
 constant eight=8 : hidden;
 constant eleven=11 : hidden;
 constant epsPoint=1 : hidden;