diff --git a/src/transport/tcp-transport.hpp b/src/transport/tcp-transport.hpp
index 6795580..db90ae4 100644
--- a/src/transport/tcp-transport.hpp
+++ b/src/transport/tcp-transport.hpp
@@ -26,11 +26,11 @@
   ~TcpTransport();
 
   // from Transport
-  virtual void 
+  virtual void
   connect(boost::asio::io_service& ioService,
           const ReceiveCallback& receiveCallback);
-  
-  virtual void 
+
+  virtual void
   close();
 
   virtual void
@@ -39,10 +39,10 @@
   virtual void
   resume();
 
-  virtual void 
+  virtual void
   send(const Block& wire);
 
-  virtual void 
+  virtual void
   send(const Block& header, const Block& payload);
 
 private:
diff --git a/src/transport/transport.hpp b/src/transport/transport.hpp
index 08740fb..eda9521 100644
--- a/src/transport/transport.hpp
+++ b/src/transport/transport.hpp
@@ -12,7 +12,8 @@
 
 namespace ndn {
 
-class Transport {
+class Transport
+{
 public:
   class Error : public std::runtime_error
   {
diff --git a/src/transport/unix-transport.cpp b/src/transport/unix-transport.cpp
index ad6db2c..4dc636a 100644
--- a/src/transport/unix-transport.cpp
+++ b/src/transport/unix-transport.cpp
@@ -30,11 +30,11 @@
     {
       return parsed.get<std::string>("unix_socket");
     }
-  catch (const boost::property_tree::ptree_bad_path& error)
+  catch (boost::property_tree::ptree_bad_path& error)
     {
       // unix_socket not present, continue
     }
-  catch (const boost::property_tree::ptree_bad_data& error)
+  catch (boost::property_tree::ptree_bad_data& error)
     {
       throw ConfigFile::Error(error.what());
     }