diff --git a/website/source/docs/agent/options.html.md b/website/source/docs/agent/options.html.md
index 172b5d3af2..0001bba177 100644
--- a/website/source/docs/agent/options.html.md
+++ b/website/source/docs/agent/options.html.md
@@ -432,6 +432,8 @@ will exit with an error at startup.
   - Metadata keys must contain only alphanumeric, `-`, and `_` characters.
   - Metadata keys must not begin with the `consul-` prefix; that is reserved for internal use by Consul.
   - Metadata values must be between 0 and 512 (inclusive) characters in length.
+  - Metadata values for keys begining with `rfc1035-` are encoded verbatim in DNS TXT requests, otherwise
+    the metadata kv-pair is encoded according [RFC1464](https://www.ietf.org/rfc/rfc1464.txt).
 
 * <a name="_pid_file"></a><a href="#_pid_file">`-pid-file`</a> - This flag provides the file
   path for the agent to store its PID. This is useful for sending signals (for example, `SIGINT`