diff --git a/src/proto/screen.pro b/src/proto/screen.pro
index 2b77537..d53955e 100644
--- a/src/proto/screen.pro
+++ b/src/proto/screen.pro
@@ -30,7 +30,7 @@
 int screen_valid(int doclear);
 void screenalloc(int doclear);
 void free_screenlines(void);
-void screenclear(void);
+int screenclear(void);
 void redraw_as_cleared(void);
 void line_was_clobbered(int screen_lnum);
 int can_clear(char_u *p);