1 files changed, 1 insertions, 1 deletions

diff --git a/ui-plain.c b/ui-plain.c
index da76406..1b2b672 100644
--- a/ui-plain.c
+++ b/ui-plain.c
@@ -29,17 +29,17 @@ static void print_object(const unsigned char *sha1, const char *path)
         buf = read_sha1_file(sha1, &type, &size);
         if (!buf) {
                 html_status(404, "Not found", 0);
                 return;
         }
         ctx.page.mimetype = NULL;
         ext = strrchr(path, '.');
         if (ext && *(++ext)) {
-                mime = string_list_lookup(ext, &ctx.cfg.mimetypes);
+                mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
                 if (mime)
                         ctx.page.mimetype = (char *)mime->util;
         }
         if (!ctx.page.mimetype) {
                 if (buffer_is_binary(buf, size))
                         ctx.page.mimetype = "application/octet-stream";
                 else
                         ctx.page.mimetype = "text/plain";