===================================================================
RCS file: /cvs/mandoc/roff.c,v
retrieving revision 1.162
retrieving revision 1.163
diff -u -p -r1.162 -r1.163
--- mandoc/roff.c	2011/07/27 17:25:30	1.162
+++ mandoc/roff.c	2011/07/27 20:55:28	1.163
@@ -1,4 +1,4 @@
-/*	$Id: roff.c,v 1.162 2011/07/27 17:25:30 kristaps Exp $ */
+/*	$Id: roff.c,v 1.163 2011/07/27 20:55:28 kristaps Exp $ */
 /*
  * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
@@ -1497,12 +1497,10 @@ roff_setstr(struct roff *r, const char *name, const ch
 	if (NULL == n->val) {
 		n->val = mandoc_malloc(newch);
 		*n->val = '\0';
-		n->valsz = newch - 1;
 		oldch = 0;
 	} else {
 		oldch = n->valsz;
-		n->val = mandoc_realloc(n->val, n->valsz + newch);
-		n->valsz += newch - 1;
+		n->val = mandoc_realloc(n->val, oldch + newch);
 	}
 
 	/* Skip existing content in the destination buffer. */
@@ -1522,7 +1520,9 @@ roff_setstr(struct roff *r, const char *name, const ch
 	/* Append terminating bytes. */
 	if (multiline)
 		*c++ = '\n';
+
 	*c = '\0';
+	n->valsz = (int)(c - n->val);
 }
 
 static const char *