===================================================================
RCS file: /cvs/mandoc/chars.c,v
retrieving revision 1.22
retrieving revision 1.23
diff -u -p -r1.22 -r1.23
--- mandoc/chars.c	2010/07/17 09:21:39	1.22
+++ mandoc/chars.c	2010/07/18 12:10:08	1.23
@@ -1,4 +1,4 @@
-/*	$Id: chars.c,v 1.22 2010/07/17 09:21:39 kristaps Exp $ */
+/*	$Id: chars.c,v 1.23 2010/07/18 12:10:08 kristaps Exp $ */
 /*
  * Copyright (c) 2009 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -195,7 +195,8 @@ find(struct tbl *tab, const char *p, size_t sz, int ty
 	int		  hash;
 
 	assert(p);
-	assert(sz > 0);
+	if (0 == sz)
+		return(NULL);
 
 	if (p[0] < PRINT_LO || p[0] > PRINT_HI)
 		return(NULL);