diff --git a/manifest.json b/manifest.json
index 6b7a1aba..87f26b95 100644
--- a/manifest.json
+++ b/manifest.json
@@ -447,7 +447,6 @@
 		"50-21",
 		"50-23",
 		"51-title",
-		"51-01",
 		"51-03",
 		"51-05",
 		"51-07",