diff --git a/metakube/resource_node_deployment_structure_test.go b/metakube/resource_node_deployment_structure_test.go
index 02814a9..a2475b4 100644
--- a/metakube/resource_node_deployment_structure_test.go
+++ b/metakube/resource_node_deployment_structure_test.go
@@ -327,8 +327,8 @@ func TestFlattenOpenstackNodeSpec(t *testing.T) {
 				Flavor:                    strToPtr("big"),
 				Image:                     strToPtr("Ubuntu"),
 				UseFloatingIP:             ptr.To(true),
-				InstanceReadyCheckPeriod:  ptr.To("10s"),
-				InstanceReadyCheckTimeout: ptr.To("120s"),
+				InstanceReadyCheckPeriod:  "10s",
+				InstanceReadyCheckTimeout: "120s",
 				Tags: map[string]string{
 					"foo": "bar",
 				},
diff --git a/metakube/resource_node_deployment_test.go b/metakube/resource_node_deployment_test.go
index a267cc2..11a06d7 100644
--- a/metakube/resource_node_deployment_test.go
+++ b/metakube/resource_node_deployment_test.go
@@ -301,7 +301,7 @@ func testAccCheckMetaKubeNodeDeploymentFields(rec *models.NodeDeployment, flavor
 			return fmt.Errorf("Image=%s doesn't match %s", *openstack.Image, image)
 		}
 
-		if openstack.RootDiskSizeGB != int64(diskSize) {
+		if openstack.RootDiskSizeGB == nil || *openstack.RootDiskSizeGB != int64(diskSize) {
 			return fmt.Errorf("RootDiskSizeGB=%d, want %d", openstack.RootDiskSizeGB, diskSize)
 		}