diff --git a/src/fe-text/term-terminfo.c b/src/fe-text/term-terminfo.c
index b13426d1..29d3f7eb 100644
--- a/src/fe-text/term-terminfo.c
+++ b/src/fe-text/term-terminfo.c
@@ -293,7 +293,7 @@ void term_window_scroll(TERM_WINDOW *window, int count)
         term_move_reset(vcx, vcy);
 
         /* set the newly scrolled area dirty */
-	for (y = 0; y < window->height; y++)
+	for (y = 0; (window->y+y) < term_height && y < window->height; y++)
 		term_lines_empty[window->y+y] = FALSE;
 }