diff --git a/css/MLS.css b/css/MLS.css
index 85e767416..59ddfad63 100644
--- a/css/MLS.css
+++ b/css/MLS.css
@@ -87,7 +87,7 @@ a:hover { text-decoration: underline; }
  * term ends and the links begin.
  */
 .ltx_indexrefs > .ltx_text:first-child:before {
-  content: " -";
+  content: " –";
 }
 
 .ltx_page_header *[rel~="up"],