diff -r dd5c0ebdf54f -r 8ac7b8d56115 docs/schema/config.xsd
--- a/docs/schema/config.xsd	Tue Sep 05 12:00:49 2017 +0200
+++ b/docs/schema/config.xsd	Tue Sep 05 12:11:09 2017 +0200
@@ -62,6 +62,7 @@
             <xs:enumeration value="TLSv1.0" />
             <xs:enumeration value="TLSv1.1" />
             <xs:enumeration value="TLSv1.2" />
+            <xs:enumeration value="TLSv1.3" />
             <xs:enumeration value="SSLv2" />
             <xs:enumeration value="SSLv3" />
         </xs:restriction>