diff --git a/nlsr.conf b/nlsr.conf
index 7c59dee..fecb57e 100644
--- a/nlsr.conf
+++ b/nlsr.conf
@@ -123,9 +123,10 @@
 {
   ; the ndnname is used to advertised name from the router. To advertise each name prefix
   ; configure one block of ndnname configuration command for every name prefix.
+  ; format: <name-prefix> <cost>
 
-  prefix /ndn/edu/memphis/cs/netlab           ; name in ndn URI format
-  prefix /ndn/edu/memphis/sports/basketball
+  /ndn/edu/memphis/cs/netlab 0
+  /ndn/edu/memphis/sports/basketball 0
 }
 
 security