diff --git a/sys/vm/vm_object.h b/sys/vm/vm_object.h
index 3274f59f958..71a1c33c7f2 100644
--- a/sys/vm/vm_object.h
+++ b/sys/vm/vm_object.h
@@ -283,7 +283,7 @@ struct vnode;
  *	The object must be locked or thread private.
  */
 static __inline void
-vm_object_set_flag(vm_object_t object, u_short bits)
+vm_object_set_flag(vm_object_t object, u_int bits)
 {
 
 	object->flags |= bits;