diff --git a/doc/index.html b/doc/index.html
index 4888a7606dd..f31993d7e74 100644
--- a/doc/index.html
+++ b/doc/index.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <head>
-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>Dolibarr doc directory</title>
 </head>
 <body>
