diff --git a/lib/Rewrite/HTMLRewrite.cpp b/lib/Rewrite/HTMLRewrite.cpp
index f63b8e4..f6d0d23 100644
--- a/lib/Rewrite/HTMLRewrite.cpp
+++ b/lib/Rewrite/HTMLRewrite.cpp
@@ -188,6 +188,7 @@
        << " .msg { margin-top:10px; margin-bottom:10px }\n"
        << " .mrange { background-color:#ffcc66 }\n"
        << " .mrange { border-bottom: 1px solid #ff8000 }\n"
+       << " .PathIndex { font-weight: bold }\n"
        << "</style>\n</head>\n<body>";
     
     R.InsertStrBefore(StartLoc, os.str());