diff --git a/docker/conf/web-search.yml b/docker/conf/web-search.yml
--- a/docker/conf/web-search.yml
+++ b/docker/conf/web-search.yml
@@ -24,7 +24,8 @@
   cls: remote
   url: http://swh-search:5010/
 
-metadata_search_backend: swh-search
+search_config:
+  metadata_backend: swh-search
 
 allowed_hosts:
   - "*"