diff --git a/src/org/openbravo/erpCommon/utility/PopupLoading.java b/src/org/openbravo/erpCommon/utility/PopupLoading.java
--- a/src/org/openbravo/erpCommon/utility/PopupLoading.java
+++ b/src/org/openbravo/erpCommon/utility/PopupLoading.java
@@ -54,6 +54,7 @@
     xmlDocument.setParameter("directory", "var baseDirectory = \"" + strReplaceWith + "/\";\n");
     xmlDocument.setParameter("language", "defaultLang=\"" + vars.getLanguage() + "\";");
     xmlDocument.setParameter("theme", vars.getTheme());
+    response.setContentType("text/html; charset=UTF-8");
     PrintWriter out = response.getWriter();
     out.println(xmlDocument.print());
     out.close();