diff --git a/hw/xquartz/X11Application.m b/hw/xquartz/X11Application.m
index 2cebd2aff..ec58ab1d5 100644
--- a/hw/xquartz/X11Application.m
+++ b/hw/xquartz/X11Application.m
@@ -47,7 +47,7 @@
 
 #include <mach/mach.h>
 #include <unistd.h>
-#include <available.h>
+#include <AvailabilityMacros.h>
 
 #include <Xplugin.h>
 
diff --git a/hw/xquartz/quartzKeyboard.c b/hw/xquartz/quartzKeyboard.c
index 7c9ac70a3..f78facbf6 100644
--- a/hw/xquartz/quartzKeyboard.c
+++ b/hw/xquartz/quartzKeyboard.c
@@ -44,7 +44,7 @@
 #include <stdlib.h>
 #include <errno.h>
 #include <sys/stat.h>
-#include <available.h>
+#include <AvailabilityMacros.h>
 
 #include "quartzCommon.h"
 #include "darwin.h"