diff --git a/hw/arm/exynos4210.c b/hw/arm/exynos4210.c
index de39fb0..af511a1 100644
--- a/hw/arm/exynos4210.c
+++ b/hw/arm/exynos4210.c
@@ -23,6 +23,7 @@
 
 #include "qemu/osdep.h"
 #include "qapi/error.h"
+#include "exec/tswap.h"
 #include "cpu.h"
 #include "hw/cpu/a9mpcore.h"
 #include "hw/irq.h"