diff --git a/util.c b/util.c
index f0eb7fc..5d031cb 100644
--- a/util.c
+++ b/util.c
@@ -2160,7 +2160,7 @@ vertical_copy_area(XtermWidget xw,
 	int src_x = CursorX(screen, left);
 	int src_y = firstline * FontHeight(screen) + screen->border;
 	unsigned int w = (unsigned) ((right + 1 - left) * FontWidth(screen));
-	unsigned int h = (unsigned) (nlines * FontHeight(screen));
+	unsigned int h = (unsigned) (nlines * VDrawable(screen));
 	int dst_x = src_x;
 	int dst_y = src_y - amount * FontHeight(screen);