diff --git a/manifest.json b/manifest.json
index 31ed874c1..d05b5d7ee 100644
--- a/manifest.json
+++ b/manifest.json
@@ -153,7 +153,6 @@
 		"08-12",
 		"08-13",
 		"08-14",
-		"08-15",
 		"08-reference",
 		"09-title",
 		"09-01",