diff --git a/ndn-cpp/c/transport/TcpTransport.h b/ndn-cpp/c/transport/TcpTransport.h
index 19ed4e2..0a1742c 100644
--- a/ndn-cpp/c/transport/TcpTransport.h
+++ b/ndn-cpp/c/transport/TcpTransport.h
@@ -30,8 +30,6 @@
 ndn_Error ndn_TcpTransport_receive
   (struct ndn_TcpTransport *self, unsigned char *buffer, unsigned int bufferLength, unsigned int *nBytes);
 
-int testTcpTransport(unsigned char *data, unsigned int dataLength);
-
 #ifdef	__cplusplus
 }
 #endif