diff --git a/linkcheck/HtmlParser/htmllib.py b/linkcheck/HtmlParser/htmllib.py
index a9a7ea59..59551969 100644
--- a/linkcheck/HtmlParser/htmllib.py
+++ b/linkcheck/HtmlParser/htmllib.py
@@ -243,3 +243,10 @@ def quote_attrval (s):
     s = s.replace('&', "&")
     s = s.replace('"', """)
     return s
+
+
+def quote_val (s):
+    s = s.replace('&', "&")
+    s = s.replace('<', "&lt;")
+    s = s.replace('>', "&gt;")
+    return s