diff --git a/tests/grib_statistics.sh b/tests/grib_statistics.sh
index be072d073..b2e68356c 100755
--- a/tests/grib_statistics.sh
+++ b/tests/grib_statistics.sh
@@ -93,9 +93,14 @@ cat >$tempFilt<<EOF
 EOF
 input=$ECCODES_SAMPLES_PATH/GRIB2.tmpl
 ${tools_dir}/grib_filter -o $temp1 $tempFilt $input
+grib_check_key_equals $temp1 packingType,isConstant 'grid_complex_spatial_differencing 1'
 stats1=`${tools_dir}/grib_get -M -F%.0f -n statistics $input`
 stats2=`${tools_dir}/grib_get -M -F%.0f -n statistics $temp1`
 [ "$stats1" = "$stats2" ]
+${tools_dir}/grib_set -rs packingType=grid_simple $temp1 $temp2
+grib_check_key_equals $temp2 packingType,isConstant 'grid_simple 1'
+${tools_dir}/grib_compare -b totalLength,section5Length,dataRepresentationTemplateNumber $temp2 $temp1
+
 
 # Decode as string - Null op
 cat >$tempFilt<<EOF