diff --git a/src/msw/sockmsw.cpp b/src/msw/sockmsw.cpp
index 2330a33a6c..791f18a49b 100644
--- a/src/msw/sockmsw.cpp
+++ b/src/msw/sockmsw.cpp
@@ -267,15 +267,12 @@ void wxSocketMSWManager::Install_Callback(wxSocketImpl *socket_,
 {
     wxSocketImplMSW * const socket = static_cast<wxSocketImplMSW *>(socket_);
 
-  if (socket->m_fd != INVALID_SOCKET)
-  {
     /* We could probably just subscribe to all events regardless
      * of the socket type, but MS recommends to do it this way.
      */
     long lEvent = socket->m_server?
                   FD_ACCEPT : (FD_READ | FD_WRITE | FD_CONNECT | FD_CLOSE);
     gs_WSAAsyncSelect(socket->m_fd, hWin, socket->m_msgnumber, lEvent);
-  }
 }
 
 /*
@@ -286,10 +283,7 @@ void wxSocketMSWManager::Uninstall_Callback(wxSocketImpl *socket_,
 {
     wxSocketImplMSW * const socket = static_cast<wxSocketImplMSW *>(socket_);
 
-  if (socket->m_fd != INVALID_SOCKET)
-  {
     gs_WSAAsyncSelect(socket->m_fd, hWin, socket->m_msgnumber, 0);
-  }
 }
 
 // set the wxBase variable to point to our wxSocketManager implementation