diff --git a/Makefile b/Makefile
index 1208584fa1..fa67d76780 100644
--- a/Makefile
+++ b/Makefile
@@ -710,6 +710,7 @@ TEST_BUILTINS_OBJS += test-delta.o
 TEST_BUILTINS_OBJS += test-drop-caches.o
 TEST_BUILTINS_OBJS += test-dump-cache-tree.o
 TEST_BUILTINS_OBJS += test-dump-split-index.o
+TEST_BUILTINS_OBJS += test-dump-untracked-cache.o
 TEST_BUILTINS_OBJS += test-example-decorate.o
 TEST_BUILTINS_OBJS += test-genrandom.o
 TEST_BUILTINS_OBJS += test-hashmap.o
@@ -741,7 +742,6 @@ TEST_BUILTINS_OBJS += test-wildmatch.o
 TEST_BUILTINS_OBJS += test-write-cache.o
 
 TEST_PROGRAMS_NEED_X += test-dump-fsmonitor
-TEST_PROGRAMS_NEED_X += test-dump-untracked-cache
 TEST_PROGRAMS_NEED_X += test-fake-ssh
 TEST_PROGRAMS_NEED_X += test-line-buffer
 TEST_PROGRAMS_NEED_X += test-parse-options
diff --git a/t/helper/test-dump-untracked-cache.c b/t/helper/test-dump-untracked-cache.c
index bd92fb305a..52870ebbb3 100644
--- a/t/helper/test-dump-untracked-cache.c
+++ b/t/helper/test-dump-untracked-cache.c
@@ -1,3 +1,4 @@
+#include "test-tool.h"
 #include "cache.h"
 #include "dir.h"
 
@@ -38,7 +39,7 @@ static void dump(struct untracked_cache_dir *ucd, struct strbuf *base)
 	strbuf_setlen(base, len);
 }
 
-int cmd_main(int ac, const char **av)
+int cmd__dump_untracked_cache(int ac, const char **av)
 {
 	struct untracked_cache *uc;
 	struct strbuf base = STRBUF_INIT;
diff --git a/t/helper/test-tool.c b/t/helper/test-tool.c
index 79e03eecb5..820335704a 100644
--- a/t/helper/test-tool.c
+++ b/t/helper/test-tool.c
@@ -15,6 +15,7 @@ static struct test_cmd cmds[] = {
 	{ "drop-caches", cmd__drop_caches },
 	{ "dump-cache-tree", cmd__dump_cache_tree },
 	{ "dump-split-index", cmd__dump_split_index },
+	{ "dump-untracked-cache", cmd__dump_untracked_cache },
 	{ "example-decorate", cmd__example_decorate },
 	{ "genrandom", cmd__genrandom },
 	{ "hashmap", cmd__hashmap },
diff --git a/t/helper/test-tool.h b/t/helper/test-tool.h
index 4b7212827a..118c700c7a 100644
--- a/t/helper/test-tool.h
+++ b/t/helper/test-tool.h
@@ -11,6 +11,7 @@ int cmd__delta(int argc, const char **argv);
 int cmd__drop_caches(int argc, const char **argv);
 int cmd__dump_cache_tree(int argc, const char **argv);
 int cmd__dump_split_index(int argc, const char **argv);
+int cmd__dump_untracked_cache(int argc, const char **argv);
 int cmd__example_decorate(int argc, const char **argv);
 int cmd__genrandom(int argc, const char **argv);
 int cmd__hashmap(int argc, const char **argv);
diff --git a/t/t7063-status-untracked-cache.sh b/t/t7063-status-untracked-cache.sh
index 2da57fce7b..190ae149cf 100755
--- a/t/t7063-status-untracked-cache.sh
+++ b/t/t7063-status-untracked-cache.sh
@@ -55,7 +55,7 @@ test_expect_success 'setup' '
 '
 
 test_expect_success 'untracked cache is empty' '
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	cat >../expect-empty <<EOF &&
 info/exclude 0000000000000000000000000000000000000000
 core.excludesfile 0000000000000000000000000000000000000000
@@ -106,7 +106,7 @@ EOF
 '
 
 test_expect_success 'untracked cache after first status' '
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../dump.expect ../actual
 '
 
@@ -126,7 +126,7 @@ EOF
 '
 
 test_expect_success 'untracked cache after second status' '
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../dump.expect ../actual
 '
 
@@ -157,7 +157,7 @@ EOF
 '
 
 test_expect_success 'verify untracked cache dump' '
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	cat >../expect <<EOF &&
 info/exclude $EMPTY_BLOB
 core.excludesfile 0000000000000000000000000000000000000000
@@ -204,7 +204,7 @@ EOF
 '
 
 test_expect_success 'verify untracked cache dump' '
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	cat >../expect <<EOF &&
 info/exclude $EMPTY_BLOB
 core.excludesfile 0000000000000000000000000000000000000000
@@ -248,7 +248,7 @@ EOF
 '
 
 test_expect_success 'verify untracked cache dump' '
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	cat >../expect <<EOF &&
 info/exclude 13263c0978fb9fad16b2d580fb800b6d811c3ff0
 core.excludesfile 0000000000000000000000000000000000000000
@@ -267,7 +267,7 @@ EOF
 
 test_expect_success 'move two from tracked to untracked' '
 	git rm --cached two &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	cat >../expect <<EOF &&
 info/exclude 13263c0978fb9fad16b2d580fb800b6d811c3ff0
 core.excludesfile 0000000000000000000000000000000000000000
@@ -304,7 +304,7 @@ EOF
 '
 
 test_expect_success 'verify untracked cache dump' '
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	cat >../expect <<EOF &&
 info/exclude 13263c0978fb9fad16b2d580fb800b6d811c3ff0
 core.excludesfile 0000000000000000000000000000000000000000
@@ -324,7 +324,7 @@ EOF
 
 test_expect_success 'move two from untracked to tracked' '
 	git add two &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	cat >../expect <<EOF &&
 info/exclude 13263c0978fb9fad16b2d580fb800b6d811c3ff0
 core.excludesfile 0000000000000000000000000000000000000000
@@ -361,7 +361,7 @@ EOF
 '
 
 test_expect_success 'verify untracked cache dump' '
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	cat >../expect <<EOF &&
 info/exclude 13263c0978fb9fad16b2d580fb800b6d811c3ff0
 core.excludesfile 0000000000000000000000000000000000000000
@@ -405,7 +405,7 @@ EOF
 '
 
 test_expect_success 'untracked cache correct after commit' '
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	cat >../expect <<EOF &&
 info/exclude 13263c0978fb9fad16b2d580fb800b6d811c3ff0
 core.excludesfile 0000000000000000000000000000000000000000
@@ -464,7 +464,7 @@ EOF
 '
 
 test_expect_success 'untracked cache correct after status' '
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	cat >../expect <<EOF &&
 info/exclude 13263c0978fb9fad16b2d580fb800b6d811c3ff0
 core.excludesfile 0000000000000000000000000000000000000000
@@ -532,7 +532,7 @@ EOF
 '
 
 test_expect_success 'verify untracked cache dump (sparse/subdirs)' '
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	cat >../expect-from-test-dump <<EOF &&
 info/exclude 13263c0978fb9fad16b2d580fb800b6d811c3ff0
 core.excludesfile 0000000000000000000000000000000000000000
@@ -598,66 +598,66 @@ EOF
 
 test_expect_success '--no-untracked-cache removes the cache' '
 	git update-index --no-untracked-cache &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	echo "no untracked cache" >../expect-no-uc &&
 	test_cmp ../expect-no-uc ../actual
 '
 
 test_expect_success 'git status does not change anything' '
 	git status &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../expect-no-uc ../actual
 '
 
 test_expect_success 'setting core.untrackedCache to true and using git status creates the cache' '
 	git config core.untrackedCache true &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../expect-no-uc ../actual &&
 	git status &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../expect-from-test-dump ../actual
 '
 
 test_expect_success 'using --no-untracked-cache does not fail when core.untrackedCache is true' '
 	git update-index --no-untracked-cache &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../expect-no-uc ../actual &&
 	git update-index --untracked-cache &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../expect-empty ../actual
 '
 
 test_expect_success 'setting core.untrackedCache to false and using git status removes the cache' '
 	git config core.untrackedCache false &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../expect-empty ../actual &&
 	git status &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../expect-no-uc ../actual
 '
 
 test_expect_success 'using --untracked-cache does not fail when core.untrackedCache is false' '
 	git update-index --untracked-cache &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../expect-empty ../actual
 '
 
 test_expect_success 'setting core.untrackedCache to keep' '
 	git config core.untrackedCache keep &&
 	git update-index --untracked-cache &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../expect-empty ../actual &&
 	git status &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../expect-from-test-dump ../actual &&
 	git update-index --no-untracked-cache &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../expect-no-uc ../actual &&
 	git update-index --force-untracked-cache &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../expect-empty ../actual &&
 	git status &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	test_cmp ../expect-from-test-dump ../actual
 '
 
@@ -671,23 +671,23 @@ test_expect_success 'test ident field is working' '
 
 test_expect_success 'untracked cache survives a checkout' '
 	git commit --allow-empty -m empty &&
-	test-dump-untracked-cache >../before &&
+	test-tool dump-untracked-cache >../before &&
 	test_when_finished  "git checkout master" &&
 	git checkout -b other_branch &&
-	test-dump-untracked-cache >../after &&
+	test-tool dump-untracked-cache >../after &&
 	test_cmp ../before ../after &&
 	test_commit test &&
-	test-dump-untracked-cache >../before &&
+	test-tool dump-untracked-cache >../before &&
 	git checkout master &&
-	test-dump-untracked-cache >../after &&
+	test-tool dump-untracked-cache >../after &&
 	test_cmp ../before ../after
 '
 
 test_expect_success 'untracked cache survives a commit' '
-	test-dump-untracked-cache >../before &&
+	test-tool dump-untracked-cache >../before &&
 	git add done/two &&
 	git commit -m commit &&
-	test-dump-untracked-cache >../after &&
+	test-tool dump-untracked-cache >../after &&
 	test_cmp ../before ../after
 '
 
@@ -751,7 +751,7 @@ test_expect_success '"status" after file replacement should be clean with UC=tru
 	git checkout master &&
 	avoid_racy &&
 	status_is_clean &&
-	test-dump-untracked-cache >../actual &&
+	test-tool dump-untracked-cache >../actual &&
 	grep -F "recurse valid" ../actual >../actual.grep &&
 	cat >../expect.grep <<EOF &&
 / 0000000000000000000000000000000000000000 recurse valid
diff --git a/t/t7519-status-fsmonitor.sh b/t/t7519-status-fsmonitor.sh
index 756beb0d8e..603d27789b 100755
--- a/t/t7519-status-fsmonitor.sh
+++ b/t/t7519-status-fsmonitor.sh
@@ -333,7 +333,7 @@ test_expect_success UNTRACKED_CACHE 'ignore .git changes when invalidating UNTR'
 		git update-index --fsmonitor &&
 		GIT_TRACE_UNTRACKED_STATS="$TRASH_DIRECTORY/trace-before" \
 		git status &&
-		test-dump-untracked-cache >../before
+		test-tool dump-untracked-cache >../before
 	) &&
 	cat >>dot-git/.git/hooks/fsmonitor-test <<-\EOF &&
 	printf ".git\0"
@@ -345,7 +345,7 @@ test_expect_success UNTRACKED_CACHE 'ignore .git changes when invalidating UNTR'
 		cd dot-git &&
 		GIT_TRACE_UNTRACKED_STATS="$TRASH_DIRECTORY/trace-after" \
 		git status &&
-		test-dump-untracked-cache >../after
+		test-tool dump-untracked-cache >../after
 	) &&
 	grep "directory invalidation" trace-before >>before &&
 	grep "directory invalidation" trace-after >>after &&