diff --git a/apps/ndn-consumer.hpp b/apps/ndn-consumer.hpp
index eea5fda..d0f82cc 100644
--- a/apps/ndn-consumer.hpp
+++ b/apps/ndn-consumer.hpp
@@ -22,12 +22,12 @@
 #ifndef NDN_CONSUMER_H
 #define NDN_CONSUMER_H
 
-#include "ndn-app.h"
+#include "ndn-app.hpp"
 #include "ns3/random-variable.h"
-#include "ns3/ndn-name.h"
+#include "ns3/ndn-name.hpp"
 #include "ns3/nstime.h"
 #include "ns3/data-rate.h"
-#include "ns3/ndn-rtt-estimator.h"
+#include "ns3/ndn-rtt-estimator.hpp"
 
 #include <set>
 #include <map>