diff --git a/doc/misc/format-options.pl b/doc/misc/format-options.pl
index b152b844a5..6447b4976d 100644
--- a/doc/misc/format-options.pl
+++ b/doc/misc/format-options.pl
@@ -19,8 +19,8 @@ GetOptions ('strip-not-configured' => \$strip_not_configured);
 
 print <<END;
 
-This is a summary of the named.conf options supported by
-this version of BIND 9.
+// This is a summary of the named.conf options supported by
+// this version of BIND 9.
 
 END
 
diff --git a/doc/misc/options b/doc/misc/options
index 9b3ae1d097..d67df24cd6 100644
--- a/doc/misc/options
+++ b/doc/misc/options
@@ -1,6 +1,6 @@
 
-This is a summary of the named.conf options supported by
-this version of BIND 9.
+// This is a summary of the named.conf options supported by
+// this version of BIND 9.
 
 acl <string> { <address_match_element>; ... }; // may occur multiple times
 
diff --git a/doc/misc/options.active b/doc/misc/options.active
index cfc0aa7a26..d462fd06e2 100644
--- a/doc/misc/options.active
+++ b/doc/misc/options.active
@@ -1,6 +1,6 @@
 
-This is a summary of the named.conf options supported by
-this version of BIND 9.
+// This is a summary of the named.conf options supported by
+// this version of BIND 9.
 
 acl <string> { <address_match_element>; ... }; // may occur multiple times