===================================================================
RCS file: /cvs/mandoc/term_ps.c,v
retrieving revision 1.91
retrieving revision 1.92
diff -u -p -r1.91 -r1.92
--- mandoc/term_ps.c	2017/11/10 23:42:52	1.91
+++ mandoc/term_ps.c	2020/09/06 14:45:22	1.92
@@ -1,7 +1,7 @@
-/*	$Id: term_ps.c,v 1.91 2017/11/10 23:42:52 schwarze Exp $ */
+/* $Id: term_ps.c,v 1.92 2020/09/06 14:45:22 schwarze Exp $ */
 /*
  * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2014, 2015, 2016, 2017 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2014,2015,2016,2017,2020 Ingo Schwarze <schwarze@openbsd.org>
  * Copyright (c) 2017 Marc Espie <espie@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
@@ -1252,7 +1252,10 @@ ps_endline(struct termp *p)
 
 	ps_closepage(p);
 
-	p->tcol->offset -= p->ti;
+	if ((int)p->tcol->offset > p->ti)
+		p->tcol->offset -= p->ti;
+	else 
+		p->tcol->offset = 0;
 	p->ti = 0;
 }