diff --git a/polling_stations/apps/addressbase/management/commands/update_addressbase.py b/polling_stations/apps/addressbase/management/commands/update_addressbase.py
index b10147302..50a60aab6 100644
--- a/polling_stations/apps/addressbase/management/commands/update_addressbase.py
+++ b/polling_stations/apps/addressbase/management/commands/update_addressbase.py
@@ -100,6 +100,11 @@ def add_arguments(self, parser):
             "--uprntocouncil-s3-uri",
             help="S3 URI for UPRN to Council data file",
         )
+        parser.add_argument(
+            "--database",
+            default=PRINCIPAL_DB_NAME,
+            help="Database name. Defaults to PRINCIPAL_DB_NAME - i.e. RDS if you're on EC2",
+        )
 
     def teardown(self):
         self.stdout.write(
@@ -129,8 +134,10 @@ def handle(self, *args, **options):
         self.stdout.write(f"addressbase_path set to {addressbase_path}")
         self.stdout.write(f"uprntocouncil_path to {uprntocouncil_path}")
 
+        database_name = options["database"]
+
         # Get the principal (i.e. RDS) DB
-        cursor = connections[PRINCIPAL_DB_NAME].cursor()
+        cursor = connections[database_name].cursor()
 
         # Create addressbase updater and set cursor
         addressbase_updater = AddressbaseUpdater()
diff --git a/polling_stations/apps/addressbase/tests/test_update_addressbase.py b/polling_stations/apps/addressbase/tests/test_update_addressbase.py
index 88c2a7145..68a4f31b9 100644
--- a/polling_stations/apps/addressbase/tests/test_update_addressbase.py
+++ b/polling_stations/apps/addressbase/tests/test_update_addressbase.py
@@ -2,6 +2,7 @@
 from pathlib import Path
 from unittest.mock import patch
 
+from django.core.management import call_command
 from django.db import connection
 from django.test import TestCase, TransactionTestCase
 from uk_geo_utils.base_importer import BaseImporter
@@ -138,18 +139,13 @@ def test_success(self):
         self.assertEqual(Address.objects.count(), 2)
         self.assertEqual(UprnToCouncil.objects.count(), 2)
 
-        # setup command
-        cmd = UpdateAddressbaseCommand()
-
-        # supress output
-        cmd.stdout = StringIO()
-
         # import data
         opts = {
             "addressbase_path": addressbase_path,
             "uprntocouncil_path": uprntocouncil_path,
+            "stdout": StringIO(),
         }
-        cmd.handle(**opts)
+        call_command("update_addressbase", **opts)
 
         self.assertEqual(Address.objects.count(), 4)
         self.assertEqual(UprnToCouncil.objects.count(), 4)