1 files changed, 1 insertions, 3 deletions
diff --git a/include/hw/clock.h b/include/hw/clock.h
index b524509b47..d357594df9 100644
--- a/include/hw/clock.h
+++ b/include/hw/clock.h
@@ -18,9 +18,7 @@
 #include "qemu/queue.h"
 
 #define TYPE_CLOCK "clock"
-typedef struct Clock Clock;
-DECLARE_INSTANCE_CHECKER(Clock, CLOCK,
-                         TYPE_CLOCK)
+OBJECT_DECLARE_SIMPLE_TYPE(Clock, CLOCK)
 
 typedef void ClockCallback(void *opaque);