diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index c0528e29a..92c80d08a 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -92,6 +92,7 @@ if( HAVE_BUILD_TOOLS )
         bufr_ecc-1028
         bufr_ecc-1195
         bufr_ecc-1259
+        bufr_ecc-1290
         bufr_json_samples
         bufr_ecc-359
         bufr_ecc-517
diff --git a/tests/bufr_ecc-1290.sh b/tests/bufr_ecc-1290.sh
new file mode 100755
index 000000000..f6f12eca0
--- /dev/null
+++ b/tests/bufr_ecc-1290.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+# (C) Copyright 2005- ECMWF.
+#
+# This software is licensed under the terms of the Apache Licence Version 2.0
+# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
+# 
+# In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
+# virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
+#
+
+. ./include.sh
+set -u
+REDIRECT=/dev/null
+label="bufr_ecc-1290-test"
+temp=temp.$label
+tempRules=temp.${label}.filter
+tempBufr=temp.${label}.bufr
+
+sample_bufr4=$ECCODES_SAMPLES_PATH/BUFR4.tmpl
+
+# Sequence 315010 will give spectralWaveDensity a bit width of 38
+cat > $tempRules << EOF
+ set masterTablesVersionNumber=33;
+ set localTablesVersionNumber=0;
+ set observedData=1;
+ set compressedData=0;
+ set unexpandedDescriptors={ 315010 };
+ set spectralWaveDensity = 6.66;
+ set pack = 1;
+ write;
+EOF
+
+${tools_dir}/codes_bufr_filter -o $tempBufr $tempRules $sample_bufr4
+val=`${tools_dir}/bufr_get -s unpack=1 -p spectralWaveDensity $tempBufr`
+[ "$val" = "6.66" ]
+
+rm -f $tempBufr $tempRules