diff --git a/.jenkins.sh b/.jenkins.sh
index df343c95d..4b26de11a 100644
--- a/.jenkins.sh
+++ b/.jenkins.sh
@@ -1,4 +1,4 @@
-
+opam pin add --no-action tyxml 'https://github.com/ocsigen/tyxml.git#master'
 opam pin add --no-action ocsigenserver .
 opam install camlzip
 opam install --deps-only ocsigenserver
diff --git a/opam b/opam
index 40e7b62f9..09fe14cbc 100644
--- a/opam
+++ b/opam
@@ -23,7 +23,7 @@ depends: [
   "ocamlnet" {>= "3.6.0"}
   "pcre-ocaml"
   "cryptokit"
-  "tyxml" {>= "3.1.0"}
+  "tyxml" {>= "dev"}
   ("dbm" | "sqlite3-ocaml")
   "ipaddr" {>= "2.1"}
 ]
diff --git a/src/http/ocsigen_senders.ml b/src/http/ocsigen_senders.ml
index 777e5c140..b26fb534d 100644
--- a/src/http/ocsigen_senders.ml
+++ b/src/http/ocsigen_senders.ml
@@ -28,13 +28,13 @@ open Ocsigen_stream
 
 
 (*****************************************************************************)
-(** this module instantiate the HTTP_CONTENT signature for an Xhtml content*)
+(** this module instantiate the HTTP_CONTENT signature for an Html content*)
 
 module Make_XML_Content(Xml : Xml_sigs.Iterable)
     (Typed_xml : Xml_sigs.Typed_xml with module Xml := Xml)
 = struct
 
-  module Xhtmlprinter =
+  module Htmlprinter =
     Xml_print.Make_typed(Xml)(Typed_xml)(Ocsigen_stream.StringStream)
 
   type t = Typed_xml.doc
@@ -64,13 +64,15 @@ module Make_XML_Content(Xml : Xml_sigs.Iterable)
       choose_content_type options
         Typed_xml.Info.alternative_content_types
         Typed_xml.Info.content_type in
-    let x = Xhtmlprinter.print ~advert c in
+    let encode x = fst (Xml_print.Utf8.normalize_html x) in
+    let x = Htmlprinter.print ~encode ~advert c in
     let default_result = Result.default () in
     Lwt.return
       (Result.update default_result
          ~content_length:None
          ~content_type:(Some content_type)
          ~etag:(get_etag c)
+         ~charset:(Some "utf-8")
          ~headers:Http_headers.dyn_headers
          ~stream:(x, None) ())
 end