diff --git a/lib/collabora.sh b/lib/collabora.sh
index 19781a8..91da2f8 100644
--- a/lib/collabora.sh
+++ b/lib/collabora.sh
@@ -32,6 +32,8 @@ services:
     networks:
       federated:
         ipv4_address: 172.99.0.14
+    extra_hosts:
+      - "nextcloud.$DOMAIN:$EXTERNALIP"
     ports:
       - "9980:9980"
     volumes: