diff --git a/README.md b/README.md
index f791738..6625a19 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@
 * [ping](tools/ping): test reachability between two nodes
 * [dump](tools/dump): analyze traffic on wire
 * [dissect](tools/dissect): inspect TLV structure of NDN packet format
+* [pib](tools/pib): a service to manage the public information of keys and publish certificates
 
 See [INSTALL.md](INSTALL.md) for build instructions.