diff --git a/.env.example b/.env.example
index 6757abd..db69018 100644
--- a/.env.example
+++ b/.env.example
@@ -1,5 +1,6 @@
 # Configure SERVER_ADDRESS to match the address of the server. If you don't have a DNS name, you can use the IP address.
 # A missconfigured SERVER_ADDRESS will cause the app to have CSRF errors.
+# If you're using a different port for HTTPS in the docker-compose.yml, you need to specify it as <my_server_address>:<port_number>
 SERVER_ADDRESS=my_server_address
 DEBUG_MODE=False
 # Choose a timezone from https://en.wikipedia.org/wiki/List_of_tz_database_time_zones