diff --git a/lib/bookstack.sh b/lib/bookstack.sh
index b69796c..b3bb3c0 100644
--- a/lib/bookstack.sh
+++ b/lib/bookstack.sh
@@ -23,6 +23,8 @@ services:
     networks:
       core:
         ipv4_address: 192.168.0.36
+    extra_hosts:
+      - "authelia.$DOMAIN:$EXTERNALIP"
     env_file:
       - ./.env
     volumes: