diff --git a/hw/acpi/cpu.c b/hw/acpi/cpu.c
index 7a90c8f..87f30a3 100644
--- a/hw/acpi/cpu.c
+++ b/hw/acpi/cpu.c
@@ -1,5 +1,6 @@
 #include "qemu/osdep.h"
 #include "hw/boards.h"
+#include "migration/vmstate.h"
 #include "hw/acpi/cpu.h"
 #include "qapi/error.h"
 #include "qapi/qapi-events-misc.h"