diff --git a/manifest.json b/manifest.json
index 8ea8b21..c085c6e 100644
--- a/manifest.json
+++ b/manifest.json
@@ -305,6 +305,7 @@
 		"17-22",
 		"17-24",
 		"17-26",
+		"17-28",
 		"17-30",
 		"17-32",
 		"18-title",