===================================================================
RCS file: /cvs/texi2mdoc/main.c,v
retrieving revision 1.28
retrieving revision 1.29
diff -u -p -r1.28 -r1.29
--- texi2mdoc/main.c	2015/02/21 21:49:18	1.28
+++ texi2mdoc/main.c	2015/02/21 22:01:32	1.29
@@ -1,4 +1,4 @@
-/*	$Id: main.c,v 1.28 2015/02/21 21:49:18 kristaps Exp $ */
+/*	$Id: main.c,v 1.29 2015/02/21 22:01:32 kristaps Exp $ */
 /*
  * Copyright (c) 2015 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -1014,6 +1014,8 @@ dovalue(struct texi *p, enum texicmd cmd, 
 					break;
 			if (i < p->valstackpos)
 				texierr(p, "recursive value");
+			if (64 == p->valstackpos) 
+				texierr(p, "too many nested values");
 			p->valstack[p->valstackpos++] = cp;
 			parseeof(p, cp, strlen(cp));
 			p->valstackpos--;