diff --git a/src/proto/gui_riscos.pro b/src/proto/gui_riscos.pro
index 3c23fe0..ab4e8bc 100644
--- a/src/proto/gui_riscos.pro
+++ b/src/proto/gui_riscos.pro
@@ -53,8 +53,7 @@
 void process_event __ARGS((int event, int *block));
 void gui_mch_show_popupmenu __ARGS((vimmenu_T *menu));
 long_u gui_mch_get_rgb __ARGS((guicolor_T pixel));
-int gui_mch_get_mouse_x __ARGS((void));
-int gui_mch_get_mouse_y __ARGS((void));
+void gui_mch_getmouse __ARGS((int *x, int *y));
 void gui_mch_setmouse __ARGS((int x, int y));
 void gui_mch_drawsign __ARGS((int row, int col, int typenr));
 void gui_mch_destroy_sign __ARGS((XImage *sign));