diff --git a/src/main/java/widoco/LODEParser.java b/src/main/java/widoco/LODEParser.java
index f505647..4e139c5 100644
--- a/src/main/java/widoco/LODEParser.java
+++ b/src/main/java/widoco/LODEParser.java
@@ -182,6 +182,7 @@ private void parse(String content, Properties langFile) {
 
 		try {
 			DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
+			dbf.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
 			DocumentBuilder db = dbf.newDocumentBuilder();
 			Document doc = db.parse(new ByteArrayInputStream(content.getBytes("UTF-8")));// StandardCharsets.UTF_8