diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index c89ff63579..3c80f37ead 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -30,6 +30,7 @@
 
 #include "qemu/osdep.h"
 #include "qemu/units.h"
+#include "hw/acpi/acpi.h"
 #include "hw/char/parallel-isa.h"
 #include "hw/loader.h"
 #include "hw/i2c/smbus_eeprom.h"