diff --git a/src/include/86box/plat.h b/src/include/86box/plat.h
index 504109dfa..5b810ed22 100644
--- a/src/include/86box/plat.h
+++ b/src/include/86box/plat.h
@@ -117,6 +117,7 @@ extern int	plat_setvid(int api);
 extern void	plat_vidsize(int x, int y);
 extern void	plat_setfullscreen(int on);
 extern void	plat_resize_monitor(int x, int y, int monitor_index);
+extern void     plat_resize(int x, int y);
 extern void	plat_vidapi_enable(int enabled);
 extern void	plat_vidapi_reload(void);
 extern void	plat_vid_reload_options(void);