diff --git a/src/tbox/platform/windows/directory.c b/src/tbox/platform/windows/directory.c
index 0e2cc25db..c2f3a5916 100644
--- a/src/tbox/platform/windows/directory.c
+++ b/src/tbox/platform/windows/directory.c
@@ -325,6 +325,7 @@ tb_void_t tb_directory_walk(tb_char_t const* path, tb_long_t recursion, tb_bool_
 }
 tb_bool_t tb_directory_copy(tb_char_t const* path, tb_char_t const* dest, tb_size_t flags)
 {
+    tb_trace_i("tb_directory_copy: %s %s", path, dest);
     // the absolute path
     tb_char_t full0[TB_PATH_MAXN];
     path = tb_path_absolute(path, full0, TB_PATH_MAXN);
@@ -336,7 +337,7 @@ tb_bool_t tb_directory_copy(tb_char_t const* path, tb_char_t const* dest, tb_siz
     tb_assert_and_check_return_val(dest, tb_false);
 
     // walk copy
-    tb_value_t tuple[3];
+    tb_value_t tuple[4];
     tuple[0].cstr = dest;
     tuple[1].ul = tb_strlen(path);
     tuple[2].ul = flags;