diff --git a/docker/compose/docker-compose.portainer.yml b/docker/compose/docker-compose.portainer.yml
index 0d2fbec111..4608f906e6 100644
--- a/docker/compose/docker-compose.portainer.yml
+++ b/docker/compose/docker-compose.portainer.yml
@@ -56,7 +56,7 @@ services:
     environment:
       PAPERLESS_REDIS: redis://broker:6379
       PAPERLESS_DBHOST: db
-      PAPERLESS_DBENGINE: postgres
+      PAPERLESS_DBENGINE: postgresql
     env_file:
       - stack.env
 volumes: