diff --git a/rib/rib.cpp b/rib/rib.cpp
index 422de9f..a2a27fb 100644
--- a/rib/rib.cpp
+++ b/rib/rib.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2016,  Regents of the University of California,
+ * Copyright (c) 2014-2017,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -33,6 +33,13 @@
 namespace nfd {
 namespace rib {
 
+bool
+operator<(const RibRouteRef& lhs, const RibRouteRef& rhs)
+{
+  return std::tie(lhs.entry->getName(), lhs.route->faceId, lhs.route->origin) <
+         std::tie(rhs.entry->getName(), rhs.route->faceId, rhs.route->origin);
+}
+
 static inline bool
 sortRoutes(const Route& lhs, const Route& rhs)
 {