diff --git a/docker/conf/lister.yml b/docker/conf/lister.yml
--- a/docker/conf/lister.yml
+++ b/docker/conf/lister.yml
@@ -35,6 +35,7 @@
     - swh.lister.launchpad.tasks.IncrementalLaunchpadLister
     - swh.lister.launchpad.tasks.FullLaunchpadLister
     - swh.lister.maven.tasks.FullMavenLister
+    - swh.lister.nixguix.tasks.NixGuixListerTask
     - swh.lister.npm.tasks.NpmIncrementalListerTask
     - swh.lister.npm.tasks.NpmListerTask
     - swh.lister.nuget.tasks.NugetListerTask
diff --git a/docker/conf/loader.yml b/docker/conf/loader.yml
--- a/docker/conf/loader.yml
+++ b/docker/conf/loader.yml
@@ -16,6 +16,8 @@
   task_broker: amqp://guest:guest@amqp//
   task_queues:
     - swh.loader.bzr.tasks.LoadBazaar
+    - swh.loader.core.tasks.LoadContent
+    - swh.loader.core.tasks.LoadDirectory
     - swh.loader.cvs.tasks.LoadCvsRepository
     - swh.loader.dir.tasks.LoadDirRepository
     - swh.loader.git.tasks.LoadDiskGitRepository