diff --git a/src/proto/vim9class.pro b/src/proto/vim9class.pro
index 362e2ca..62d1b7d 100644
--- a/src/proto/vim9class.pro
+++ b/src/proto/vim9class.pro
@@ -17,13 +17,14 @@
 ufunc_T *method_lookup(class_T *cl, vartype_T v_type, char_u *name, size_t namelen, int *idx);
 int inside_class(cctx_T *cctx_arg, class_T *cl);
 void copy_object(typval_T *from, typval_T *to);
-void object_unref(object_T *obj);
 void copy_class(typval_T *from, typval_T *to);
 void class_unref(class_T *cl);
 int class_free_nonref(int copyID);
 int set_ref_in_classes(int copyID);
 void object_created(object_T *obj);
+void object_unref(object_T *obj);
 int object_free_nonref(int copyID);
+void object_free_items(int copyID);
 void method_not_found_msg(class_T *cl, vartype_T v_type, char_u *name, size_t len);
 void member_not_found_msg(class_T *cl, vartype_T v_type, char_u *name, size_t len);
 void f_instanceof(typval_T *argvars, typval_T *rettv);