diff --git a/tests/sort/sort-merge.pl b/tests/sort/sort-merge.pl
index 89eed0c64..c2f5aa7e5 100755
--- a/tests/sort/sort-merge.pl
+++ b/tests/sort/sort-merge.pl
@@ -43,22 +43,22 @@ my @Tests =
      # check validation of --batch-size option
      ['nmerge-0', "-m --batch-size=0", @inputs,
         {ERR=>"$prog: invalid --batch-size argument '0'\n".
-              "$prog: minimum --batch-size argument is '2'\n"}, {EXIT=>2}],
+              "$prog: minimum --batch-size argument is '2'\nTry 'sort --help' for more information.\n"}, {EXIT=>2}],
 
      ['nmerge-1', "-m --batch-size=1", @inputs,
         {ERR=>"$prog: invalid --batch-size argument '1'\n".
-              "$prog: minimum --batch-size argument is '2'\n"}, {EXIT=>2}],
+              "$prog: minimum --batch-size argument is '2'\nTry 'sort --help' for more information.\n"}, {EXIT=>2}],
 
      ['nmerge-neg', "-m --batch-size=-1", @inputs,
-        {ERR=>"$prog: invalid --batch-size argument '-1'\n"}, {EXIT=>2}],
+        {ERR=>"$prog: invalid --batch-size argument '-1'\nTry 'sort --help' for more information.\n"}, {EXIT=>2}],
 
      ['nmerge-nan', "-m --batch-size=a", @inputs,
-        {ERR=>"$prog: invalid --batch-size argument 'a'\n"}, {EXIT=>2}],
+        {ERR=>"$prog: invalid --batch-size argument 'a'\nTry 'sort --help' for more information.\n"}, {EXIT=>2}],
 
      ['nmerge-big', "-m --batch-size=$bigint", @inputs,
         {ERR_SUBST=>'s/(current rlimit is) \d+/$1/'},
         {ERR=>"$prog: --batch-size argument '$bigint' too large\n".
-              "$prog: maximum --batch-size argument with current rlimit is\n"},
+              "$prog: maximum --batch-size argument with current rlimit is\nTry 'sort --help' for more information.\n"},
         {EXIT=>2}],
 
      # This should work since nmerge >= the number of input files