diff --git a/src/proto/popupwin.pro b/src/proto/popupwin.pro
index bc4315a..6e9b162 100644
--- a/src/proto/popupwin.pro
+++ b/src/proto/popupwin.pro
@@ -40,8 +40,8 @@
 void f_popup_locate(typval_T *argvars, typval_T *rettv);
 void f_popup_getoptions(typval_T *argvars, typval_T *rettv);
 int error_if_popup_window(void);
-void popup_reset_handled(void);
-win_T *find_next_popup(int lowest);
+void popup_reset_handled(int handled_flag);
+win_T *find_next_popup(int lowest, int handled_flag);
 int popup_do_filter(int c);
 int popup_no_mapping(void);
 void popup_check_cursor_pos(void);