diff --git a/conf/storage.yml b/conf/storage.yml
index b5a510c..a27b3be 100644
--- a/conf/storage.yml
+++ b/conf/storage.yml
@@ -1,15 +1,15 @@
 storage:
   cls: local
   args:
     db: postgresql:///?service=swh-storage
     objstorage:
       cls: remote
       args:
         url: http://swh-objstorage:5003/
-  journal_writer:
-    cls: kafka
-    args:
-      brokers:
-        - kafka
-      prefix: swh.journal.objects
-      client_id: swh.storage.master
+    journal_writer:
+      cls: kafka
+      args:
+        brokers:
+          - kafka
+        prefix: swh.journal.objects
+        client_id: swh.storage.master