diff --git a/.env.sample b/.env.sample
index 3a978b0..50bc7bc 100644
--- a/.env.sample
+++ b/.env.sample
@@ -9,6 +9,10 @@ LETS_ENCRYPT_ENV=production
 HTTP_SUBDIR=
 COMPOSE_FILE="compose.yml"
 
+## Serve dot-prefixed files/directories (e.g. /.well-known/).
+## Defaults to true (hidden). Set false to expose them.
+#SERVER_IGNORE_HIDDEN_FILES=false
+
 # Single Sign On via Traefik "file provider"
 #COMPOSE_FILE="$COMPOSE_FILE:compose.sso.yml"
 
diff --git a/compose.yml b/compose.yml
index a9a8909..29d1247 100644
--- a/compose.yml
+++ b/compose.yml
@@ -20,6 +20,7 @@ services:
         - "coop-cloud.${STACK_NAME}.version=1.0.1+2.38.0"
     environment:
       - HTTP_SUBDIR
+      - SERVER_IGNORE_HIDDEN_FILES
     volumes:
       - content:/var/www/http