diff --git a/TODO.md b/TODO.md
index 0ab955e..7495dbf 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,4 +1,7 @@
-o <del>IPv6</del>
 o support of other discovery protocols like SSDP, GVCP
+
 o check device type return
+
+o <del>IPv6</del>
+
 o <del>check query on multiple network devices</del>