diff --git a/src/proto/beval.pro b/src/proto/beval.pro
index 62eba9e..8b67e38 100644
--- a/src/proto/beval.pro
+++ b/src/proto/beval.pro
@@ -1,5 +1,5 @@
 /* beval.c */
-int find_word_under_cursor(int mouserow, int mousecol, int getword, int flags, win_T **winp, linenr_T *lnump, char_u **textp, int *colp);
+int find_word_under_cursor(int mouserow, int mousecol, int getword, int flags, win_T **winp, linenr_T *lnump, char_u **textp, int *colp, int *startcolp);
 int get_beval_info(BalloonEval *beval, int getword, win_T **winp, linenr_T *lnump, char_u **textp, int *colp);
 void post_balloon(BalloonEval *beval, char_u *mesg, list_T *list);
 int can_use_beval(void);