diff --git a/manifest.json b/manifest.json
index 7f4cf37d1..ef9486586 100644
--- a/manifest.json
+++ b/manifest.json
@@ -297,7 +297,6 @@
 		"17-14",
 		"17-reference",
 		"18-title",
-		"18-01",
 		"18-03",
 		"18-04",
 		"18-05",