diff --git a/src/network/socket/socket.pri b/src/network/socket/socket.pri
index 48c38a209e..8f93f0d0c0 100644
--- a/src/network/socket/socket.pri
+++ b/src/network/socket/socket.pri
@@ -8,6 +8,7 @@ HEADERS += socket/qabstractsocketengine_p.h \
            socket/qtcpsocket.h \
            socket/qudpsocket.h \
            socket/qtcpserver.h \
+           socket/qtcpsocket_p.h \
            socket/qlocalserver.h \
            socket/qlocalserver_p.h \
            socket/qlocalsocket.h \