diff --git a/ndn-cpp/transport/tcp-transport.cpp b/ndn-cpp/transport/tcp-transport.cpp
index 4552cfe..aa438bc 100644
--- a/ndn-cpp/transport/tcp-transport.cpp
+++ b/ndn-cpp/transport/tcp-transport.cpp
@@ -59,4 +59,11 @@
     throw std::runtime_error(ndn_getErrorString(error));  
 }
 
+TcpTransport::~TcpTransport()
+{
+  if (elementReader_.partialData.array)
+    // Free the memory allocated in connect.
+    free(elementReader_.partialData.array);
+}
+
 }
diff --git a/ndn-cpp/transport/tcp-transport.hpp b/ndn-cpp/transport/tcp-transport.hpp
index 9167beb..57d9554 100644
--- a/ndn-cpp/transport/tcp-transport.hpp
+++ b/ndn-cpp/transport/tcp-transport.hpp
@@ -18,6 +18,7 @@
   {
     ndn_TcpTransport_init(&transport_);
     face_ = 0;
+    elementReader_.partialData.array = 0;
   }
   
   /**
@@ -47,6 +48,8 @@
    */
   virtual void close();
   
+  ~TcpTransport();
+  
 private:
   struct ndn_TcpTransport transport_;
   Face *face_;
diff --git a/ndn-cpp/transport/udp-transport.cpp b/ndn-cpp/transport/udp-transport.cpp
index 6d6f304..4ae9e37 100644
--- a/ndn-cpp/transport/udp-transport.cpp
+++ b/ndn-cpp/transport/udp-transport.cpp
@@ -59,4 +59,11 @@
     throw std::runtime_error(ndn_getErrorString(error));  
 }
 
+UdpTransport::~UdpTransport()
+{
+  if (elementReader_.partialData.array)
+    // Free the memory allocated in connect.
+    free(elementReader_.partialData.array);
+}
+
 }
diff --git a/ndn-cpp/transport/udp-transport.hpp b/ndn-cpp/transport/udp-transport.hpp
index a54839f..17f6e25 100644
--- a/ndn-cpp/transport/udp-transport.hpp
+++ b/ndn-cpp/transport/udp-transport.hpp
@@ -18,6 +18,7 @@
   {
     ndn_UdpTransport_init(&transport_);
     face_ = 0;
+    elementReader_.partialData.array = 0;
   }
   
   /**
@@ -47,6 +48,8 @@
    */
   virtual void close();
 
+  ~UdpTransport();
+  
 private:
   struct ndn_UdpTransport transport_;
   Face *face_;