diff --git a/Documentation/config.txt b/Documentation/config.txt
index eb66a11975..ee3b5dd8ef 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -2828,6 +2828,8 @@ protocol.version::
 * `1` - the original wire protocol with the addition of a version string
   in the initial response from the server.
 
+* `2` - link:technical/protocol-v2.html[wire protocol version 2].
+
 --
 
 pull.ff::