diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c
index 23f58702fa..85e8c81e59 100644
--- a/builtin/diff-tree.c
+++ b/builtin/diff-tree.c
@@ -83,8 +83,9 @@ static int diff_tree_stdin(char *line)
 }
 
 static const char diff_tree_usage[] =
-"git diff-tree [--stdin] [-m] [-c | --cc] [-s] [-v] [--pretty] [-t] [-r] [--root] "
-"[<common-diff-options>] <tree-ish> [<tree-ish>] [<path>...]\n"
+"git diff-tree [--stdin] [-m] [-s] [-v] [--no-commit-id] [--pretty]\n"
+"              [-t] [-r] [-c | --cc] [--combined-all-paths] [--root] [--merge-base]\n"
+"              [<common-diff-options>] <tree-ish> [<tree-ish>] [<path>...]\n"
 "\n"
 "  -r            diff recursively\n"
 "  -c            show combined diff for merge commits\n"