diff --git a/src/proto/vim9class.pro b/src/proto/vim9class.pro
index 4e55178..4c6e12d 100644
--- a/src/proto/vim9class.pro
+++ b/src/proto/vim9class.pro
@@ -1,6 +1,12 @@
 /* vim9class.c */
 void ex_class(exarg_T *eap);
+type_T *class_member_type(class_T *cl, char_u *name, char_u *name_end, int *member_idx);
 void ex_interface(exarg_T *eap);
 void ex_enum(exarg_T *eap);
 void ex_type(exarg_T *eap);
+int class_object_index(char_u **arg, typval_T *rettv, evalarg_T *evalarg, int verbose);
+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(typval_T *tv);
 /* vim: set ft=c : */