diff --git a/manifest.json b/manifest.json
index 47b09a9f..489b89b2 100644
--- a/manifest.json
+++ b/manifest.json
@@ -306,6 +306,7 @@
 		"18-10",
 		"18-11",
 		"18-12",
+		"18-13",
 		"18-reference",
 		"19-title",
 		"19-01",