diff --git a/tests/mk_manifest.rb b/tests/mk_manifest.rb
index 34507247..4c7a5c12 100755
--- a/tests/mk_manifest.rb
+++ b/tests/mk_manifest.rb
@@ -175,10 +175,11 @@ def to_ttl
 ## 2. http://www.w3.org/Consortium/Legal/2008/03-bsd-license
 ## 3. http://www.w3.org/2004/10/27-testcases
 ##
-## This file is generated automatciallly from manifest.csv, and should not be edited directly.
+## This file is generated automatically from manifest.csv, and should not be edited directly.
 ##
 ## Test types
 ## * rdfc:RDFC10EvalTest – Canonicalization using RDFC-1.0
+## * rdfc:RDFC10NegativeEvalTest – Negative Canonicalization using RDFC-1.0
 ## * rdfc:RDFC10MapTest  – RDFC-1.0 Issued Identifiers Test
 
 @prefix : <manifest#> .