diff --git a/src/proto/dict.pro b/src/proto/dict.pro
index 30a3055..a4442cc 100644
--- a/src/proto/dict.pro
+++ b/src/proto/dict.pro
@@ -28,12 +28,12 @@
 long dict_len(dict_T *d);
 dictitem_T *dict_find(dict_T *d, char_u *key, int len);
 int dict_has_key(dict_T *d, char *key);
-int dict_get_tv(dict_T *d, char_u *key, typval_T *rettv);
-char_u *dict_get_string(dict_T *d, char_u *key, int save);
-varnumber_T dict_get_number(dict_T *d, char_u *key);
-varnumber_T dict_get_number_def(dict_T *d, char_u *key, int def);
+int dict_get_tv(dict_T *d, char *key, typval_T *rettv);
+char_u *dict_get_string(dict_T *d, char *key, int save);
+varnumber_T dict_get_number(dict_T *d, char *key);
+varnumber_T dict_get_number_def(dict_T *d, char *key, int def);
 varnumber_T dict_get_number_check(dict_T *d, char_u *key);
-varnumber_T dict_get_bool(dict_T *d, char_u *key, int def);
+varnumber_T dict_get_bool(dict_T *d, char *key, int def);
 char_u *dict2string(typval_T *tv, int copyID, int restore_copyID);
 char_u *get_literal_key(char_u **arg);
 int eval_dict(char_u **arg, typval_T *rettv, evalarg_T *evalarg, int literal);