diff --git a/apps/assets/models/domain.py b/apps/assets/models/domain.py
index 6f29a0381..61c3bcc1f 100644
--- a/apps/assets/models/domain.py
+++ b/apps/assets/models/domain.py
@@ -43,7 +43,7 @@ class Gateway(AssetUser):
     ip = models.GenericIPAddressField(max_length=32, verbose_name=_('IP'), db_index=True)
     port = models.IntegerField(default=22, verbose_name=_('Port'))
     protocol = models.CharField(choices=PROTOCOL_CHOICES, max_length=16, default=SSH_PROTOCOL, verbose_name=_("Protocol"))
-    domain = models.ForeignKey(Domain, verbose_name=_("Domain"))
+    domain = models.ForeignKey(Domain, verbose_name=_("Domain"), on_delete=models.CASCADE)
     comment = models.CharField(max_length=128, blank=True, null=True, verbose_name=_("Comment"))
     is_active = models.BooleanField(default=True, verbose_name=_("Is active"))
 
diff --git a/utils/2018_07_15_set_win_protocol_to_ssh.sh b/utils/2018_07_15_set_win_protocol_to_ssh.sh
new file mode 100644
index 000000000..6d8596244
--- /dev/null
+++ b/utils/2018_07_15_set_win_protocol_to_ssh.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+#
+
+python ../apps/manage.py shell << EOF
+from assets.models import Asset
+
+Asset.objects.filter(platform__startswith='Win').update(protocol='rdp')
+
+EOF