1 files changed, 4 insertions, 1 deletions

diff --git a/ui-plain.c b/ui-plain.c
index f73cd14..93a3a05 100644
--- a/ui-plain.c
+++ b/ui-plain.c
@@ -30,9 +30,12 @@ static void print_object(const unsigned char *sha1, const char *path)
 	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;
 	ctx.page.etag = sha1_to_hex(sha1);
 	cgit_print_http_headers(&ctx);