diff --git a/include/hw/sysbus.h b/include/hw/sysbus.h
index 9fb1782d7b..9bddfdec42 100644
--- a/include/hw/sysbus.h
+++ b/include/hw/sysbus.h
@@ -10,7 +10,7 @@
 #define QDEV_MAX_PIO 32
 
 #define TYPE_SYSTEM_BUS "System"
-#define SYSTEM_BUS(obj) OBJECT_CHECK(IDEBus, (obj), TYPE_IDE_BUS)
+#define SYSTEM_BUS(obj) OBJECT_CHECK(BusState, (obj), TYPE_SYSTEM_BUS)
 
 typedef struct SysBusDevice SysBusDevice;