diff --git a/src/reference/asciidoc/index.adoc b/src/reference/asciidoc/index.adoc
index 96d9d6cb..a85ab849 100644
--- a/src/reference/asciidoc/index.adoc
+++ b/src/reference/asciidoc/index.adoc
@@ -14,7 +14,7 @@ ifdef::backend-html5[]
 *{project-version}*
 endif::[]
 
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+(C) 2010 - 2021 by VMware, Inc.
 
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