1 files changed, 2 insertions, 1 deletions
diff --git a/hw/char/serial-isa.c b/hw/char/serial-isa.c
index 3d1c9a2d75..d4aad81a85 100644
--- a/hw/char/serial-isa.c
+++ b/hw/char/serial-isa.c
@@ -35,7 +35,8 @@
 #include "qom/object.h"
 
 typedef struct ISASerialState ISASerialState;
-#define ISA_SERIAL(obj) OBJECT_CHECK(ISASerialState, (obj), TYPE_ISA_SERIAL)
+DECLARE_INSTANCE_CHECKER(ISASerialState, ISA_SERIAL,
+                         TYPE_ISA_SERIAL)
 
 struct ISASerialState {
     ISADevice parent_obj;