diff --git a/vulnerabilities/management/commands/import.py b/vulnerabilities/management/commands/import.py
index 6a8c5eacd..0991f596e 100644
--- a/vulnerabilities/management/commands/import.py
+++ b/vulnerabilities/management/commands/import.py
@@ -100,7 +100,7 @@ def import_data(self, names, cutoff_date):
     def _import_data(self, importers, cutoff_date):
         for importer in importers:
             self.stdout.write(f'Importing data from {importer.name}')
-            batch_size = getattr(self, 'batch_size', 10)
+            batch_size = int(getattr(self, 'batch_size', 10))
             ImportRunner(importer, batch_size).run(cutoff_date=cutoff_date)
             self.stdout.write(
                 self.style.SUCCESS(f'Successfully imported data from {importer.name}'))