1 files changed, 4 insertions, 1 deletions

diff --git a/ui-plain.c b/ui-plain.c
index 5addd9e..9a9ae7d 100644
--- a/ui-plain.c
+++ b/ui-plain.c
@@ -22,25 +22,28 @@ static void print_object(const unsigned char *sha1, const char *path)
 
 	type = sha1_object_info(sha1, &size);
 	if (type == OBJ_BAD) {
 		html_status(404, "Not found", 0);
 		return;
 	}
 
 	buf = read_sha1_file(sha1, &type, &size);
 	if (!buf) {
 		html_status(404, "Not found", 0);
 		return;
 	}
-	ctx.page.mimetype = "text/plain";
+	if (buffer_is_binary(buf, size))
+		ctx.page.mimetype = "application/octet-stream";
+	else
+		ctx.page.mimetype = "text/plain";
 	ctx.page.filename = fmt("%s", path);
 	ctx.page.size = size;
 	cgit_print_http_headers(&ctx);
 	html_raw(buf, size);
 	match = 1;
 }
 
 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 		     const char *pathname, unsigned mode, int stage,
 		     void *cbdata)
 {
 	if (S_ISDIR(mode))