build: Fixing of includes
diff --git a/helper/boost-graph-ndn-global-routing-helper.hpp b/helper/boost-graph-ndn-global-routing-helper.hpp
index a85e9c9..e615494 100644
--- a/helper/boost-graph-ndn-global-routing-helper.hpp
+++ b/helper/boost-graph-ndn-global-routing-helper.hpp
@@ -28,11 +28,11 @@
 #include <boost/graph/properties.hpp>
 #include <boost/ref.hpp>
 
-#include "ns3/ndn-face.h"
-#include "ns3/ndn-limits.h"
+#include "ns3/ndn-face.hpp"
+#include "ns3/ndn-limits.hpp"
 #include "ns3/node-list.h"
 #include "ns3/channel-list.h"
-#include "../model/ndn-global-router.h"
+#include "../model/ndn-global-router.hpp"
 #include <list>
 #include <map>