1 files changed, 1 insertions, 1 deletions

diff --git a/shared.c b/shared.c
index bf0581f..f063894 100644
--- a/shared.c
+++ b/shared.c
@@ -489,13 +489,13 @@ void cgit_diff_tree(const unsigned char *old_sha1,
         int prefixlen;
 
         diff_setup(&opt);
         opt.output_format = DIFF_FORMAT_CALLBACK;
         opt.detect_rename = 1;
         opt.rename_limit = cgit_renamelimit;
-        opt.recursive = 1;
+        DIFF_OPT_SET(&opt, RECURSIVE);
         opt.format_callback = cgit_diff_tree_cb;
         opt.format_callback_data = fn;
         if (prefix) {
                 opt.nr_paths = 1;
                 opt.paths = &prefix;
                 prefixlen = strlen(prefix);