diff --git a/src/proto/spell.pro b/src/proto/spell.pro
index 55c8482..f6bad56 100644
--- a/src/proto/spell.pro
+++ b/src/proto/spell.pro
@@ -16,7 +16,7 @@
 void count_common_word(slang_T *lp, char_u *word, int len, int count);
 int byte_in_str(char_u *str, int n);
 int init_syl_tab(slang_T *slang);
-char *did_set_spelllang(win_T *wp);
+char *parse_spelllang(win_T *wp);
 int captype(char_u *word, char_u *end);
 void spell_delete_wordlist(void);
 void spell_free_all(void);