1 files changed, 6 insertions, 4 deletions
diff --git a/include/hw/net/lance.h b/include/hw/net/lance.h
index 0357f5f65c..f645d6af67 100644
--- a/include/hw/net/lance.h
+++ b/include/hw/net/lance.h
@@ -32,15 +32,17 @@
 #include "net/net.h"
 #include "hw/net/pcnet.h"
 #include "hw/sysbus.h"
+#include "qom/object.h"
 
 #define TYPE_LANCE "lance"
-#define SYSBUS_PCNET(obj) \
-    OBJECT_CHECK(SysBusPCNetState, (obj), TYPE_LANCE)
+typedef struct SysBusPCNetState SysBusPCNetState;
+DECLARE_INSTANCE_CHECKER(SysBusPCNetState, SYSBUS_PCNET,
+                         TYPE_LANCE)
 
-typedef struct {
+struct SysBusPCNetState {
     SysBusDevice parent_obj;
 
     PCNetState state;
-} SysBusPCNetState;
+};
 
 #endif