diff --git a/examples/ndn-simple-with-pcap.cpp b/examples/ndn-simple-with-pcap.cpp
index 1e35fb0..ecbc8eb 100644
--- a/examples/ndn-simple-with-pcap.cpp
+++ b/examples/ndn-simple-with-pcap.cpp
@@ -25,84 +25,81 @@
 
 using namespace ns3;
 
-class PcapWriter
-{
+class PcapWriter {
 public:
-  PcapWriter (const std::string &file)
+  PcapWriter(const std::string& file)
   {
     PcapHelper helper;
-    m_pcap = helper.CreateFile (file, std::ios::out, PcapHelper::DLT_PPP);
+    m_pcap = helper.CreateFile(file, std::ios::out, PcapHelper::DLT_PPP);
   }
 
   void
-  TracePacket (Ptr<const Packet> packet)
+  TracePacket(Ptr<const Packet> packet)
   {
     static PppHeader pppHeader;
-    pppHeader.SetProtocol (0x0077);
+    pppHeader.SetProtocol(0x0077);
 
-    m_pcap->Write (Simulator::Now (), pppHeader, packet);
+    m_pcap->Write(Simulator::Now(), pppHeader, packet);
   }
 
 private:
   Ptr<PcapFileWrapper> m_pcap;
 };
 
-
 int
-main (int argc, char *argv[])
+main(int argc, char* argv[])
 {
   // setting default parameters for PointToPoint links and channels
-  Config::SetDefault ("ns3::PointToPointNetDevice::DataRate", StringValue ("1Mbps"));
-  Config::SetDefault ("ns3::PointToPointChannel::Delay", StringValue ("10ms"));
-  Config::SetDefault ("ns3::DropTailQueue::MaxPackets", StringValue ("20"));
+  Config::SetDefault("ns3::PointToPointNetDevice::DataRate", StringValue("1Mbps"));
+  Config::SetDefault("ns3::PointToPointChannel::Delay", StringValue("10ms"));
+  Config::SetDefault("ns3::DropTailQueue::MaxPackets", StringValue("20"));
 
-  Config::SetGlobal ("ndn::WireFormat", StringValue ("1"));
+  Config::SetGlobal("ndn::WireFormat", StringValue("1"));
 
   // Read optional command-line parameters (e.g., enable visualizer with ./waf --run=<> --visualize
   CommandLine cmd;
-  cmd.Parse (argc, argv);
-  
+  cmd.Parse(argc, argv);
+
   // Creating nodes
   NodeContainer nodes;
-  nodes.Create (3);
+  nodes.Create(3);
 
   // Connecting nodes using two links
   PointToPointHelper p2p;
-  p2p.Install (nodes.Get (0), nodes.Get (1));
-  p2p.Install (nodes.Get (1), nodes.Get (2));
+  p2p.Install(nodes.Get(0), nodes.Get(1));
+  p2p.Install(nodes.Get(1), nodes.Get(2));
 
   // Install NDN stack on all nodes
   ndn::StackHelper ndnHelper;
-  ndnHelper.SetDefaultRoutes (true);
-  ndnHelper.InstallAll ();
+  ndnHelper.SetDefaultRoutes(true);
+  ndnHelper.InstallAll();
 
   // Installing applications
 
   // Consumer
-  ndn::AppHelper consumerHelper ("ns3::ndn::ConsumerCbr");
+  ndn::AppHelper consumerHelper("ns3::ndn::ConsumerCbr");
   // Consumer will request /prefix/0, /prefix/1, ...
-  consumerHelper.SetPrefix ("/prefix");
-  consumerHelper.SetAttribute ("Frequency", StringValue ("10")); // 10 interests a second
-  consumerHelper.Install (nodes.Get (0)); // first node
+  consumerHelper.SetPrefix("/prefix");
+  consumerHelper.SetAttribute("Frequency", StringValue("10")); // 10 interests a second
+  consumerHelper.Install(nodes.Get(0));                        // first node
 
   // Producer
-  ndn::AppHelper producerHelper ("ns3::ndn::Producer");
+  ndn::AppHelper producerHelper("ns3::ndn::Producer");
   // Producer will reply to all requests starting with /prefix
-  producerHelper.SetPrefix ("/prefix");
-  producerHelper.SetAttribute ("PayloadSize", StringValue("1024"));
-  producerHelper.SetAttribute ("Signature", UintegerValue (100));
-  producerHelper.SetAttribute ("KeyLocator", StringValue ("/unique/key/locator"));
-  producerHelper.Install (nodes.Get (2)); // last node
+  producerHelper.SetPrefix("/prefix");
+  producerHelper.SetAttribute("PayloadSize", StringValue("1024"));
+  producerHelper.SetAttribute("Signature", UintegerValue(100));
+  producerHelper.SetAttribute("KeyLocator", StringValue("/unique/key/locator"));
+  producerHelper.Install(nodes.Get(2)); // last node
 
-  PcapWriter trace ("ndn-simple-trace.pcap");
-  Config::ConnectWithoutContext ("/NodeList/*/DeviceList/*/$ns3::PointToPointNetDevice/MacTx",
-				 MakeCallback (&PcapWriter::TracePacket, &trace));
+  PcapWriter trace("ndn-simple-trace.pcap");
+  Config::ConnectWithoutContext("/NodeList/*/DeviceList/*/$ns3::PointToPointNetDevice/MacTx",
+                                MakeCallback(&PcapWriter::TracePacket, &trace));
 
-  Simulator::Stop (Seconds (20.0));
+  Simulator::Stop(Seconds(20.0));
 
-  Simulator::Run ();
-  Simulator::Destroy ();
+  Simulator::Run();
+  Simulator::Destroy();
 
   return 0;
 }
-