diff --git a/src/proto/option.pro b/src/proto/option.pro
index ca150b6..b32b95e 100644
--- a/src/proto/option.pro
+++ b/src/proto/option.pro
@@ -66,7 +66,7 @@
 void set_imsearch_global(void);
 void set_context_in_set_cmd(expand_T *xp, char_u *arg, int opt_flags);
 int ExpandSettings(expand_T *xp, regmatch_T *regmatch, char_u *fuzzystr, int *numMatches, char_u ***matches, int can_fuzzy);
-int ExpandOldSetting(int *num_file, char_u ***file);
+int ExpandOldSetting(int *numMatches, char_u ***matches);
 int shortmess(int x);
 void vimrc_found(char_u *fname, char_u *envname);
 void change_compatible(int on);