diff --git a/awx/main/management/commands/age_deleted.py b/awx/main/management/commands/age_deleted.py
index 6a6f0ef651..02d1515347 100644
--- a/awx/main/management/commands/age_deleted.py
+++ b/awx/main/management/commands/age_deleted.py
@@ -88,9 +88,13 @@ class Command(BaseCommand):
                 print('unable to find deleted timestamp in %s field' % name_field)
             else:
                 aged_date = dt - datetime.timedelta(days=self.days)
-                setattr(instance, name_field, name_prefix + aged_date.isoformat() + name_append)
+                if model is User:
+                    aged_ts_append = aged_date.strftime('%Y-%m-%dT%H:%M:%S.%f')
+                else:
+                    aged_ts_append = aged_date.isoformat() + name_append
+                setattr(instance, name_field, name_prefix +  aged_ts_append)
                 instance.save()
-                #print("Aged %s" % instance.name)
+                #print("Aged %s" % getattr(instance, name_field))
                 n_aged_items += 1