===================================================================
RCS file: /cvs/mandoc/mdoc.c,v
retrieving revision 1.264
retrieving revision 1.265
diff -u -p -r1.264 -r1.265
--- mandoc/mdoc.c	2017/05/05 15:17:32	1.264
+++ mandoc/mdoc.c	2017/06/07 20:30:40	1.265
@@ -1,4 +1,4 @@
-/*	$Id: mdoc.c,v 1.264 2017/05/05 15:17:32 schwarze Exp $ */
+/*	$Id: mdoc.c,v 1.265 2017/06/07 20:30:40 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010, 2012-2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -278,7 +278,7 @@ mdoc_ptext(struct roff_man *mdoc, int line, char *buf,
 	for (c = buf + offs; c != NULL; c = strchr(c + 1, '.')) {
 		if (c - buf < offs + 2)
 			continue;
-		if (end - c < 4)
+		if (end - c < 3)
 			break;
 		if (isalpha((unsigned char)c[-2]) &&
 		    isalpha((unsigned char)c[-1]) &&