diff --git a/manifest.json b/manifest.json
index 77b62f68..baa53ff8 100644
--- a/manifest.json
+++ b/manifest.json
@@ -186,6 +186,7 @@
 		"27-11",
 		"27-15",
 		"27-17",
+		"27-20",
 		"28-title",
 		"28-01",
 		"28-03",