diff --git a/doc/configuration.txt b/doc/configuration.txt
index e29319c02..8a91e7b8f 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -868,6 +868,7 @@ fullconn                                  X          -         X         X
 grace                                     X          X         X         X
 hash-type                                 X          -         X         X
 http-check disable-on-404                 X          -         X         X
+http-check send-state                     X          -         X         X
 http-request                              -          X         X         X
 id                                        -          X         X         X
 ignore-persist                            -          X         X         X