diff --git a/sys/sys/kobj.h b/sys/sys/kobj.h
--- a/sys/sys/kobj.h
+++ b/sys/sys/kobj.h
@@ -37,7 +37,7 @@
 typedef struct kobj		*kobj_t;
 typedef struct kobj_class	*kobj_class_t;
 typedef const struct kobj_method kobj_method_t;
-typedef int			(*kobjop_t)(void);
+typedef void			(*kobjop_t)(void);
 typedef struct kobj_ops		*kobj_ops_t;
 typedef struct kobjop_desc	*kobjop_desc_t;
 struct malloc_type;