diff --git a/sys/dev/usb/ehci_mbus.c b/sys/dev/usb/ehci_mbus.c
index 2c8a14470d0b..afa243056a62 100644
--- a/sys/dev/usb/ehci_mbus.c
+++ b/sys/dev/usb/ehci_mbus.c
@@ -47,8 +47,10 @@ __FBSDID("$FreeBSD$");
 #include <sys/bus.h>
 #include <sys/queue.h>
 #include <sys/lockmgr.h>
-#include <machine/bus.h>
 #include <sys/rman.h>
+#include <sys/endian.h>
+
+#include <machine/bus.h>
 #include <machine/resource.h>
 
 #include <dev/usb/usb.h>