diff --git a/doc/management.txt b/doc/management.txt
index dc65ba9..56e4f66 100644
--- a/doc/management.txt
+++ b/doc/management.txt
@@ -2027,6 +2027,8 @@
 
 set server <backend>/<server> ssl [ on | off ]
   This option configures SSL ciphering on outgoing connections to the server.
+  When switch off, all traffic becomes plain text; health check path is not
+  changed.
 
 set severity-output [ none | number | string ]
   Change the severity output format of the stats socket connected to for the