diff --git a/modello/xdocs/install.xml b/modello/xdocs/install.xml
index 70f859cf..e756343d 100644
--- a/modello/xdocs/install.xml
+++ b/modello/xdocs/install.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8" ?>
 <!-- 
 /*
  * Licensed to the Apache Software Foundation (ASF) under one or more
@@ -17,7 +17,6 @@
  * limitations under the License.
  */
  -->
--->
 <document>
   <properties>
     <title>Installation</title>