diff --git a/modules/nebula/main.tf b/modules/nebula/main.tf
index 2010daa..ad7f8f4 100644
--- a/modules/nebula/main.tf
+++ b/modules/nebula/main.tf
@@ -66,7 +66,7 @@ resource "opennebula_image" "data" {
      for ds in local.data_disks : "${ds.vm_key}.${ds.name}" => ds
   }
 
-  name = "${each.value.vm_key}-data-${disk.name}"
+  name = "${each.value.vm_key}-data-${each.value.name}"
   path = "https://vulcain.cadoles.com/empty_${each.value.size}"
   datastore_id = var.one_image_ds
   description = "Data disk of ${each.value.size} for ${each.value.vm_key}"