diff --git a/tf-modulised/openstack/vm.tf b/tf-modulised/openstack/vm.tf
index da1f942..a4c8978 100644
--- a/tf-modulised/openstack/vm.tf
+++ b/tf-modulised/openstack/vm.tf
@@ -1,10 +1,18 @@
 resource "openstack_compute_instance_v2" "tfvm1" {
   name            = "tfvm1"
-  image_id        = "871c021d-baef-4010-ba8e-2a900a48f41c"
   flavor_id       = "b8159937-a5f9-46fb-97eb-2d59b67cfedd"
   key_pair        = "opc-key"
   security_groups = ["default"]
 
+  block_device {
+    uuid                  = "871c021d-baef-4010-ba8e-2a900a48f41c"
+    source_type           = "image"
+    volume_size           = 10
+    boot_index            = 0
+    destination_type      = "volume"
+    delete_on_termination = true
+  }
+
   network {
     name = "shared"
   }