diff --git a/tests/codes_compare_keys.sh b/tests/codes_compare_keys.sh
index 44fed25d2..9a2a39aef 100755
--- a/tests/codes_compare_keys.sh
+++ b/tests/codes_compare_keys.sh
@@ -74,7 +74,7 @@ ${test_dir}/codes_compare_keys $sample_spectral $sample_spectral enorm,avg
 sample1=$ECCODES_SAMPLES_PATH/GRIB1.tmpl
 tempGribA=temp.${label}.A.grib
 tempGribB=temp.${label}.B.grib
-${tools_dir}/grib_set -s localDefinitionNumber=16,verifyingMonth=6 $sample1 $tempGribA
+${tools_dir}/grib_set -s localDefinitionNumber=16,verifyingMonth=2 $sample1 $tempGribA
 ${tools_dir}/grib_set -s localDefinitionNumber=16,verifyingMonth=5 $sample1 $tempGribB
 set +e
 ${test_dir}/codes_compare_keys $tempGribA $tempGribB endOfInterval > $tempLog 2>&1
diff --git a/tests/codes_get_string.sh b/tests/codes_get_string.sh
index 54d8aba96..011224253 100755
--- a/tests/codes_get_string.sh
+++ b/tests/codes_get_string.sh
@@ -11,10 +11,15 @@
 . ./include.ctest.sh
 
 label="codes_get_string_test"
+tempGrib=temp.$label.grib
 tempText=temp.$label.txt
 
 input=$ECCODES_SAMPLES_PATH/GRIB1.tmpl
-$EXEC ${test_dir}/codes_get_string $input dataDate 2> $tempText
+$EXEC ${test_dir}/codes_get_string $input dataDate
+
+${tools_dir}/grib_set -s marsType=s3,marsStream=mpic $input $tempGrib
+$EXEC ${test_dir}/codes_get_string $tempGrib dayOfTheYearDate # 2> $tempText
+
 
 input=$data_dir/reduced_latlon_surface.grib2
 keys="identifier projString bitmap class year gridDefinitionDescription