diff --git a/env.example b/env.example
index c04292d..3f80688 100644
--- a/env.example
+++ b/env.example
@@ -45,7 +45,7 @@ HTTPS_PORT=8443
 TZ=UTC
 
 # Public URL for the web service (required)
-#PUBLIC_URL=https://meet.example.com
+#PUBLIC_URL=https://meet.example.com:8443
 
 # IP address of the Docker host
 # See the "Running behind NAT or on a LAN environment" section in the Handbook: