===================================================================
RCS file: /cvs/mandoc/mdoc_html.c,v
retrieving revision 1.217
retrieving revision 1.218
diff -u -p -r1.217 -r1.218
--- mandoc/mdoc_html.c	2014/12/23 09:31:46	1.217
+++ mandoc/mdoc_html.c	2014/12/23 13:48:57	1.218
@@ -1,4 +1,4 @@
-/*	$Id: mdoc_html.c,v 1.217 2014/12/23 09:31:46 schwarze Exp $ */
+/*	$Id: mdoc_html.c,v 1.218 2014/12/23 13:48:57 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
@@ -282,7 +282,8 @@ a2width(const char *p, struct roffsu *su)
 	if (a2roffsu(p, su, SCALE_MAX) < 2) {
 		su->unit = SCALE_EN;
 		su->scale = html_strlen(p);
-	}
+	} else if (su->scale < 0.0)
+		su->scale = 0.0;
 }
 
 /*
@@ -1566,9 +1567,12 @@ mdoc_sp_pre(MDOC_ARGS)
 	SCALE_VS_INIT(&su, 1);
 
 	if (MDOC_sp == n->tok) {
-		if (NULL != (n = n->child))
+		if (NULL != (n = n->child)) {
 			if ( ! a2roffsu(n->string, &su, SCALE_VS))
 				su.scale = 1.0;
+			else if (su.scale < 0.0)
+				su.scale = 0.0;
+		}
 	} else
 		su.scale = 0.0;