diff --git a/tests/grib_to_netcdf.sh b/tests/grib_to_netcdf.sh
index 87d695b87..b4ec08deb 100755
--- a/tests/grib_to_netcdf.sh
+++ b/tests/grib_to_netcdf.sh
@@ -80,7 +80,9 @@ if test "x$NC_DUMPER" != "x"; then
     ${NC_DUMPER} -t -v time $tempNetcdf > $tempText
     cat $tempText
     grep -q 'time:units = "seconds since 2008-02-06 00:00:00.0" ;' $tempText
-    grep -q 'time = "2008-02-06 12", "2008-02-06 12:00:15.*", "2008-02-06 12:00:30' $tempText
+    grep -q 'time = "2008-02-06 12' $tempText
+    grep -q '"2008-02-06 12:00:15'  $tempText
+    grep -q '"2008-02-06 12:00:30'  $tempText
 fi
 
 # The operation should fail because the time value exceeded the maximum limit of 2,147,483,647.