diff --git a/src/proto/evalfunc.pro b/src/proto/evalfunc.pro
index ad4b98a..13dffac 100644
--- a/src/proto/evalfunc.pro
+++ b/src/proto/evalfunc.pro
@@ -4,7 +4,7 @@
 int find_internal_func(char_u *name);
 int has_internal_func(char_u *name);
 char *internal_func_name(int idx);
-int internal_func_check_arg_types(type_T **types, int idx, int argcount);
+int internal_func_check_arg_types(type_T **types, int idx, int argcount, cctx_T *cctx);
 type_T *internal_func_ret_type(int idx, int argcount, type_T **argtypes);
 int internal_func_is_map(int idx);
 int check_internal_func(int idx, int argcount);
diff --git a/src/proto/vim9compile.pro b/src/proto/vim9compile.pro
index 7800d3b..d1d1b0c 100644
--- a/src/proto/vim9compile.pro
+++ b/src/proto/vim9compile.pro
@@ -2,6 +2,7 @@
 int check_defined(char_u *p, size_t len, cctx_T *cctx);
 int check_compare_types(exprtype_T type, typval_T *tv1, typval_T *tv2);
 int use_typecheck(type_T *actual, type_T *expected);
+int need_type(type_T *actual, type_T *expected, int offset, int arg_idx, cctx_T *cctx, int silent, int actual_is_const);
 int get_script_item_idx(int sid, char_u *name, int check_writable, cctx_T *cctx);
 imported_T *find_imported(char_u *name, size_t len, cctx_T *cctx);
 imported_T *find_imported_in_script(char_u *name, size_t len, int sid);
diff --git a/src/proto/vim9type.pro b/src/proto/vim9type.pro
index 316c650..f7b472c 100644
--- a/src/proto/vim9type.pro
+++ b/src/proto/vim9type.pro
@@ -15,7 +15,6 @@
 void type_mismatch(type_T *expected, type_T *actual);
 void arg_type_mismatch(type_T *expected, type_T *actual, int argidx);
 int check_type(type_T *expected, type_T *actual, int give_msg, int argidx);
-int check_arg_type(type_T *expected, type_T *actual, int argidx);
 int check_argument_types(type_T *type, typval_T *argvars, int argcount, char_u *name);
 char_u *skip_type(char_u *start, int optional);
 type_T *parse_type(char_u **arg, garray_T *type_gap, int give_error);