diff --git a/mass_s3/mass_s3.py b/mass_s3/mass_s3.py
index b2112a2..095361d 100644
--- a/mass_s3/mass_s3.py
+++ b/mass_s3/mass_s3.py
@@ -82,6 +82,8 @@ class MassS3:
                     continue
                 objects.append(item['Key'])
 
+            self.logger.debug('Retrieved ' + str(len(list_objects_response['Contents'])) + ' objects; kept ' + str(len(objects)) + ' so far')
+
             if 'NextContinuationToken' in list_objects_response:
                 args['ContinuationToken'] = list_objects_response['NextContinuationToken']
             else: