diff --git a/src/drawscreen.c b/src/drawscreen.c
index d177370..852d331 100644
--- a/src/drawscreen.c
+++ b/src/drawscreen.c
@@ -1408,7 +1408,7 @@
  *		   - if wp->w_buffer->b_mod_set set, update lines between
  *		     b_mod_top and b_mod_bot.
  *		   - if wp->w_redraw_top non-zero, redraw lines between
- *		     wp->w_redraw_top and wp->w_redr_bot.
+ *		     wp->w_redraw_top and wp->w_redraw_bot.
  *		   - continue redrawing when syntax status is invalid.
  *		4. if scrolled up, update lines at the bottom.
  * This results in three areas that may need updating:
@@ -1567,14 +1567,6 @@
     else
 #endif
 
-    if (buf->b_mod_set && buf->b_mod_xlines != 0 && wp->w_redraw_top != 0)
-    {
-	// When there are both inserted/deleted lines and specific lines to be
-	// redrawn, w_redraw_top and w_redraw_bot may be invalid, just redraw
-	// everything (only happens when redrawing is off for while).
-	type = UPD_NOT_VALID;
-    }
-    else
     {
 	// Set mod_top to the first line that needs displaying because of
 	// changes.  Set mod_bot to the first line after the changes.