diff --git a/backend/management/commands/import.py b/backend/management/commands/import.py
index 7ab6c67d71c5b734a8ea39e6ac74266fdf8768c7..75fee40418e06ec9427b903661477ab7c68869fb 100644
--- a/backend/management/commands/import.py
+++ b/backend/management/commands/import.py
@@ -1,11 +1,8 @@
 from django.core.management.base import BaseCommand
-from django.db import transaction
-import re
 import sys
 import logging
 import json
-import datetime
-from backend import models as bmodels
+from backend.export import load_db
 
 log = logging.getLogger(__name__)
 
@@ -18,10 +15,6 @@ class Command(BaseCommand):
 
         parser.add_argument("--quiet", action="store_true", dest="quiet", default=None,
                             help="Disable progress reporting")
-        parser.add_argument("--ldap", action="store", default="ldap://db.debian.org",
-                            help="LDAP server to use. Default: %(default)s")
-        parser.add_argument("--author", action="store", default=None,
-                            help="user to use as author for the import. Default: %(default)s")
 
     def handle(self, *args, **opts):
         FORMAT = "%(asctime)-15s %(levelname)s %(message)s"
@@ -30,16 +23,8 @@ class Command(BaseCommand):
         else:
             logging.basicConfig(level=logging.INFO, stream=sys.stderr, format=FORMAT)
 
-        if opts["author"]:
-            author = lookup_person(opts["author"])
-            if not author:
-                print("Author {} not found".format(opts["author"]), file=sys.stderr)
-                sys.exit(1)
-        else:
-            author = None
-
-        importer = Importer(author=author)
         for fname in opts["file"]:
             with open(fname) as fd:
-                stats = importer.import_people(json.load(fd))
-            log.info("%s: imported %d people and %d processes", fname, stats["people"], stats["procs"])
+                loaded = load_db(json.load(fd))
+                loaded.save()
+                log.info("%s: imported information about %d people", fname, len(loaded.people))
diff --git a/backend/serializers.py b/backend/serializers.py
index 0bbeb5736a5924072de4ae15d16f7c4951de3415..1d0d0cac0bfae7be8e79b210328bead73acafd31 100644
--- a/backend/serializers.py
+++ b/backend/serializers.py
@@ -44,7 +44,7 @@ class PersonSerializer(serializers.HyperlinkedModelSerializer):
 
 
 class LogExportSerializer(serializers.ModelSerializer):
-    changed_by = PersonKeyField()
+    changed_by = PersonKeyField(allow_null=True)
 
     class Meta:
         model = bmodels.Log