diff --git a/qemu_socket.h b/qemu_socket.h
index fe4cf6ca6..51ad210a7 100644
--- a/qemu_socket.h
+++ b/qemu_socket.h
@@ -8,7 +8,9 @@
 #include <ws2tcpip.h>
 
 #define socket_error() WSAGetLastError()
+#undef EWOULDBLOCK
 #undef EINTR
+#undef EINPROGRESS
 #define EWOULDBLOCK WSAEWOULDBLOCK
 #define EINTR       WSAEINTR
 #define EINPROGRESS WSAEINPROGRESS