diff --git a/src/xcb_util.c b/src/xcb_util.c
index 882db52..2be59d2 100644
--- a/src/xcb_util.c
+++ b/src/xcb_util.c
@@ -44,6 +44,8 @@
 #include <sys/socket.h>
 #include <sys/un.h>
 #include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <fcntl.h>
 #include <netdb.h>
 #endif /* _WIN32 */