diff --git a/articles/example.html b/articles/example.html
index e08b563..8ef34ad 100644
--- a/articles/example.html
+++ b/articles/example.html
@@ -4,6 +4,7 @@
 <!-- http://validator.w3.org/#validate-by-input -->
 
 <!-- NOTICE!!!! -->
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
   <head>
