diff --git a/t/helper/test-bloom.c b/t/helper/test-bloom.c
index 77eb27adac..bfabf9c5f4 100644
--- a/t/helper/test-bloom.c
+++ b/t/helper/test-bloom.c
@@ -46,7 +46,7 @@ static void get_bloom_filter_for_commit(const struct object_id *commit_oid)
 static const char *bloom_usage = "\n"
 "  test-tool bloom get_murmer3 <string>\n"
 "  test-tool bloom generate_filter <string> [<string>...]\n"
-"  test-tool get_filter_for_commit <commit-hex>\n";
+"  test-tool bloom get_filter_for_commit <commit-hex>\n";
 
 int cmd__bloom(int argc, const char **argv)
 {