diff --git a/src/Streams/NetworkStream.cpp b/src/Streams/NetworkStream.cpp
index 1a79418..f86e1dd 100644
--- a/src/Streams/NetworkStream.cpp
+++ b/src/Streams/NetworkStream.cpp
@@ -766,6 +766,13 @@ void NetworkStream::SetNoDelay(bool noDelay)
 {
     
 }
-
+uint16_t NetworkStream::GetPort()
+{
+    return 0;
+}
+uint16_t TcpServer::GetPort()
+{
+    return 0;
+}
 }
 #endif