diff --git a/deployments/examples/ocis_oc10_backend/docker-compose.yml b/deployments/examples/ocis_oc10_backend/docker-compose.yml
index f5194dc4d3..7d755d8e0c 100644
--- a/deployments/examples/ocis_oc10_backend/docker-compose.yml
+++ b/deployments/examples/ocis_oc10_backend/docker-compose.yml
@@ -11,6 +11,8 @@ volumes:
     driver: local
   tmp:
     driver: local
+  letsencrypt:
+    driver: local
 
 services:
   traefik: