diff --git a/src/proto/dict.pro b/src/proto/dict.pro
index 7789d4c..5d76385 100644
--- a/src/proto/dict.pro
+++ b/src/proto/dict.pro
@@ -37,7 +37,7 @@
 char_u *skip_literal_key(char_u *key);
 char_u *get_literal_key(char_u **arg);
 int eval_dict(char_u **arg, typval_T *rettv, evalarg_T *evalarg, int literal);
-void dict_extend(dict_T *d1, dict_T *d2, char_u *action);
+void dict_extend(dict_T *d1, dict_T *d2, char_u *action, char *func_name);
 dictitem_T *dict_lookup(hashitem_T *hi);
 int dict_equal(dict_T *d1, dict_T *d2, int ic, int recursive);
 void f_items(typval_T *argvars, typval_T *rettv);
diff --git a/src/proto/vim9type.pro b/src/proto/vim9type.pro
index a512fa4..559eb5c 100644
--- a/src/proto/vim9type.pro
+++ b/src/proto/vim9type.pro
@@ -11,7 +11,7 @@
 int need_convert_to_bool(type_T *type, typval_T *tv);
 type_T *typval2type(typval_T *tv, int copyID, garray_T *type_gap, int do_member);
 type_T *typval2type_vimvar(typval_T *tv, garray_T *type_gap);
-int check_typval_arg_type(type_T *expected, typval_T *actual_tv, int arg_idx);
+int check_typval_arg_type(type_T *expected, typval_T *actual_tv, char *func_name, int arg_idx);
 int check_typval_type(type_T *expected, typval_T *actual_tv, where_T where);
 void type_mismatch(type_T *expected, type_T *actual);
 void arg_type_mismatch(type_T *expected, type_T *actual, int arg_idx);