diff --git a/definitions/grib2/section.5.def b/definitions/grib2/section.5.def
index 65eb1fc7d..ab795c4f6 100644
--- a/definitions/grib2/section.5.def
+++ b/definitions/grib2/section.5.def
@@ -60,7 +60,7 @@ concept packingType (unknown) {
   "grid_second_order_SPD3"                = { dataRepresentationTemplateNumber = 50001;orderOfSPD=3;     }
   "spectral_ieee"                         = { dataRepresentationTemplateNumber=50000; }
   "grid_simple_log_preprocessing"         = { dataRepresentationTemplateNumber = 61;    }
-  "bifourier_complex"                     = { dataRepresentationTemplateNumber = 60000; spectralType=99; }
+  "bifourier_complex"                     = { dataRepresentationTemplateNumber = 53; spectralType=99; }
 }  : dump;
 
 template dataRepresentation "grib2/template.5.[dataRepresentationTemplateNumber:l].def";
diff --git a/definitions/grib2/template.5.60000.def b/definitions/grib2/template.5.53.def
similarity index 95%
rename from definitions/grib2/template.5.60000.def
rename to definitions/grib2/template.5.53.def
index d5a90bae0..a0b94b1e6 100644
--- a/definitions/grib2/template.5.60000.def
+++ b/definitions/grib2/template.5.53.def
@@ -9,7 +9,7 @@
 
 
 
-# TEMPLATE 5.60000, BiFourier coefficients data - complex packing
+# TEMPLATE 5.53, BiFourier coefficients data - complex packing
 
 include "grib2/template.5.packing.def";
 
diff --git a/definitions/grib2/template.7.60000.def b/definitions/grib2/template.7.53.def
similarity index 94%
rename from definitions/grib2/template.7.60000.def
rename to definitions/grib2/template.7.53.def
index b1798754f..2941e8bcc 100644
--- a/definitions/grib2/template.7.60000.def
+++ b/definitions/grib2/template.7.53.def
@@ -7,7 +7,7 @@
 # virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
 #
 
-# TEMPLATE 7.60000, BiFourier coefficients - complex packing
+# TEMPLATE 7.53, BiFourier coefficients - complex packing
 
 constant biFourierCoefficients = 1;
 constant complexPacking = 1;
@@ -26,7 +26,6 @@ meta codedValues data_g2bifourier_packing(
           referenceValue,
           binaryScaleFactor,
           decimalScaleFactor,
-          optimizeScaleFactor,
 
           unpackedSubsetPrecision,
 
diff --git a/samples/lambert_bf_grib2.tmpl b/samples/lambert_bf_grib2.tmpl
index f1526633c..ff911025b 100644
Binary files a/samples/lambert_bf_grib2.tmpl and b/samples/lambert_bf_grib2.tmpl differ