diff --git a/README.md b/README.md
index 4402b39..a9489d0 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,8 @@ docker run \
 
 If there's an SSL certificate/key (`electrumx.crt`/`electrumx.key`) in the `/data` volume it'll be used. If not, one will be generated for you.
 
+By default only the SSL port is exposed. You can expose the unencrypted TCP port with `-p 50001:50001`, although this is strongly discouraged.
+
 ## License
 
 MIT © Luke Childs