diff --git a/bsp/qemu-vexpress-a9/drivers/drv_smc911x.c b/bsp/qemu-vexpress-a9/drivers/drv_smc911x.c
index c19fcc8dda..d76e4ce36d 100644
--- a/bsp/qemu-vexpress-a9/drivers/drv_smc911x.c
+++ b/bsp/qemu-vexpress-a9/drivers/drv_smc911x.c
@@ -14,7 +14,7 @@
 #include <automac.h>
 #include <netif/ethernetif.h>
 #include <lwipopts.h>
-
+#include "delay.h"
 #include "mmu.h"
 #include "drv_smc911x.h"