diff --git a/combo/data/utils.py b/combo/data/utils.py
index 0765d8bc..adf5ed9b 100644
--- a/combo/data/utils.py
+++ b/combo/data/utils.py
@@ -70,24 +70,18 @@ def import_site(data, if_empty=False, clean=False):
     if missing_groups:
         raise MissingGroups(names=sorted([x for x in missing_groups]))
 
-    if clean:
-        MapLayer.objects.all().delete()
-        Asset.objects.all().delete()
-        Page.objects.all().delete()
-        PwaSettings.objects.all().delete()
-        PwaNavigationEntry.objects.all().delete()
-
     with transaction.atomic():
+        if clean:
+            MapLayer.objects.all().delete()
+            Asset.objects.all().delete()
+            Page.objects.all().delete()
+            PwaSettings.objects.all().delete()
+            PwaNavigationEntry.objects.all().delete()
+
         MapLayer.load_serialized_objects(data.get('map-layers') or [])
-
-    with transaction.atomic():
         Asset.load_serialized_objects(data.get('assets') or [])
-
-    with transaction.atomic():
         Page.load_serialized_pages(data.get('pages') or [])
 
-    if data.get('pwa'):
-        with transaction.atomic():
+        if data.get('pwa'):
             PwaSettings.load_serialized_settings(data['pwa'].get('settings'))
-        with transaction.atomic():
             PwaNavigationEntry.load_serialized_objects(data['pwa'].get('navigation'))