diff --git a/index.html b/index.html
index b990d22..635d628 100644
--- a/index.html
+++ b/index.html
@@ -97,6 +97,9 @@ <h1><a href="#id2" name="installation">Installation</a></h1>
 
 -DCMAKE_LINKER="/usr/bin/ld.gold"
 # To use 'gold' linker. Requires newer binutils.
+
+-DUSE_LUA52=ON
+# to install for Lua 5.2. Requires Lua>=5.2
 </pre>
 <p>And <code>MAKE_ARGUMENTS</code> may also contain one or all of the following (in one space-delimited string or bash's array, without comments):</p>
 <pre>
@@ -371,4 +374,4 @@ <h2><a href="#id12" name="using-ssl">Using SSL</a></h2>
 
 
   </body>
-</html>
\ No newline at end of file
+</html>