diff --git a/src/proto/userfunc.pro b/src/proto/userfunc.pro
index cda0389..e5d78b6 100644
--- a/src/proto/userfunc.pro
+++ b/src/proto/userfunc.pro
@@ -41,7 +41,8 @@
 int call_func(char_u *funcname, int len, typval_T *rettv, int argcount_in, typval_T *argvars_in, funcexe_T *funcexe);
 int call_simple_func(char_u *funcname, int len, typval_T *rettv);
 char_u *printable_func_name(ufunc_T *fp);
-char_u *trans_function_name(char_u **pp, int *is_global, int skip, int flags, funcdict_T *fdp, partial_T **partial, type_T **type);
+char_u *trans_function_name(char_u **pp, int *is_global, int skip, int flags);
+char_u *trans_function_name_ext(char_u **pp, int *is_global, int skip, int flags, funcdict_T *fdp, partial_T **partial, type_T **type, ufunc_T **ufunc);
 char_u *get_scriptlocal_funcname(char_u *funcname);
 char_u *alloc_printable_func_name(char_u *fname);
 char_u *save_function_name(char_u **name, int *is_global, int skip, int flags, funcdict_T *fudi);