diff --git a/example.env b/example.env
index 9ad64a1d..05f28a29 100644
--- a/example.env
+++ b/example.env
@@ -29,6 +29,9 @@ FRAPPE_SITE_NAME_HEADER=
 # Default value is `8080`.
 HTTP_PUBLISH_PORT=
 
+# Default value is `443`.
+HTTPS_PUBLISH_PORT=
+
 # Default value is `127.0.0.1`. Set IP address as our trusted upstream address.
 UPSTREAM_REAL_IP_ADDRESS=