diff --git a/manifest.json b/manifest.json
index 1cf522435..fa87314a3 100644
--- a/manifest.json
+++ b/manifest.json
@@ -436,6 +436,7 @@
 		"27-reference",
 		"28-title",
 		"28-01",
+		"28-02",
 		"28-03",
 		"28-04",
 		"28-05",