1 files changed, 2 insertions, 1 deletions

diff --git a/archive.h b/archive.h
index 82b226011a..33551b7ee1 100644
--- a/archive.h
+++ b/archive.h
@@ -8,7 +8,7 @@ struct repository;
 
 struct archiver_args {
 	struct repository *repo;
-	const char *refname;
+	char *refname;
 	const char *prefix;
 	const char *base;
 	size_t baselen;
@@ -36,6 +36,7 @@ const char *archive_format_from_filename(const char *filename);
 
 #define ARCHIVER_WANT_COMPRESSION_LEVELS 1
 #define ARCHIVER_REMOTE 2
+#define ARCHIVER_HIGH_COMPRESSION_LEVELS 4
 struct archiver {
 	const char *name;
 	int (*write_archive)(const struct archiver *, struct archiver_args *);