diff --git a/lib/libc/tests/gen/fts_blocks_test.c b/lib/libc/tests/gen/fts_blocks_test.c
index 1aec55b581d5..f020dd8dea45 100644
--- a/lib/libc/tests/gen/fts_blocks_test.c
+++ b/lib/libc/tests/gen/fts_blocks_test.c
@@ -1,63 +1,68 @@
 /*-
  * Copyright (c) 2025 Klara, Inc.
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
 #include <sys/stat.h>
 
 #include <fcntl.h>
 #include <fts.h>
 
 #include <atf-c.h>
 
 /*
  * Create two directories with three files each in lexicographical order,
  * then call FTS with a sort block that sorts in reverse lexicographical
  * order.  This has the least chance of getting a false positive due to
  * differing file system semantics.  UFS will return the files in the
  * order they were created while ZFS will sort them lexicographically; in
  * both cases, the order we expect is the reverse.
  */
-ATF_TC_WITHOUT_HEAD(fts_blocks_test);
+ATF_TC(fts_blocks_test);
+ATF_TC_HEAD(fts_blocks_test, tc)
+{
+	atf_tc_set_md_var(tc, "descr",
+	    "Test FTS with a block in lieu of a comparison function");
+}
 ATF_TC_BODY(fts_blocks_test, tc)
 {
 	char *args[] = {
 		"bar", "foo", NULL
 	};
 	char *paths[] = {
 		"foo", "z", "y", "x", "foo",
 		"bar", "c", "b", "a", "bar",
 		NULL
 	};
 	char **expect = paths;
 	FTS *fts;
 	FTSENT *ftse;
 
 	ATF_REQUIRE_EQ(0, mkdir("bar", 0755));
 	ATF_REQUIRE_EQ(0, close(creat("bar/a", 0644)));
 	ATF_REQUIRE_EQ(0, close(creat("bar/b", 0644)));
 	ATF_REQUIRE_EQ(0, close(creat("bar/c", 0644)));
 	ATF_REQUIRE_EQ(0, mkdir("foo", 0755));
 	ATF_REQUIRE_EQ(0, close(creat("foo/x", 0644)));
 	ATF_REQUIRE_EQ(0, close(creat("foo/y", 0644)));
 	ATF_REQUIRE_EQ(0, close(creat("foo/z", 0644)));
 	fts = fts_open_b(args, 0,
 	    ^(const FTSENT * const *a, const FTSENT * const *b) {
 		    return (strcmp((*b)->fts_name, (*a)->fts_name));
 	    });
 	ATF_REQUIRE_MSG(fts != NULL, "fts_open_b(): %m");
 	while ((ftse = fts_read(fts)) != NULL && *expect != NULL) {
 		ATF_CHECK_STREQ(*expect, ftse->fts_name);
 		expect++;
 	}
 	ATF_CHECK_EQ(NULL, ftse);
 	ATF_CHECK_EQ(NULL, *expect);
 	ATF_REQUIRE_EQ_MSG(0, fts_close(fts), "fts_close(): %m");
 }
 
 ATF_TP_ADD_TCS(tp)
 {
 	ATF_TP_ADD_TC(tp, fts_blocks_test);
 	return (atf_no_error());
 }