diff --git a/hw/ide/ahci-sysbus.c b/hw/ide/ahci-sysbus.c
index d43db0923f..2432039290 100644
--- a/hw/ide/ahci-sysbus.c
+++ b/hw/ide/ahci-sysbus.c
@@ -62,7 +62,7 @@ static void sysbus_ahci_realize(DeviceState *dev, Error **errp)
     ahci_realize(&s->ahci, dev, &address_space_memory);
 }
 
-static Property sysbus_ahci_properties[] = {
+static const Property sysbus_ahci_properties[] = {
     DEFINE_PROP_UINT32("num-ports", SysbusAHCIState, ahci.ports, 1),
     DEFINE_PROP_END_OF_LIST(),
 };