diff --git a/pimd/TODO b/pimd/TODO
index 0818d9c..1dc561d 100644
--- a/pimd/TODO
+++ b/pimd/TODO
@@ -355,7 +355,11 @@
     http://www.ietf.org/html.charters/mboned-charter.html
 
 T41 DONE ssmping support
-    See http://www.venaas.no/multicast/ssmping/
+
+    See also:
+      http://www.venaas.no/multicast/ssmping/
+      draft-ietf-mboned-ssmping-07
+      http://tools.ietf.org/html/draft-ietf-mboned-ssmping-07
 
     Example: