diff --git a/src/main/java/org/springframework/hateoas/mediatype/alps/Format.java b/src/main/java/org/springframework/hateoas/mediatype/alps/Format.java
index 391f49a8..61699c89 100644
--- a/src/main/java/org/springframework/hateoas/mediatype/alps/Format.java
+++ b/src/main/java/org/springframework/hateoas/mediatype/alps/Format.java
@@ -27,7 +27,7 @@ import java.util.Locale;
  */
 public enum Format {
 
-	TEXT, HTML, ASCIIDOC;
+	TEXT, HTML, ASCIIDOC, MARKDOWN;
 
 	/*
 	 * (non-Javadoc)