diff --git a/deployment/check/data-model-tf-proxmox/nixosTest.nix b/deployment/check/data-model-tf-proxmox/nixosTest.nix
index 41de4e1d..6bf13cfb 100644
--- a/deployment/check/data-model-tf-proxmox/nixosTest.nix
+++ b/deployment/check/data-model-tf-proxmox/nixosTest.nix
@@ -158,6 +158,7 @@ in
         enable = true;
         settings = {
           LISTEN_ADDR = ":${backendPort}";
+          # FIXME randomly generate this
           KMS_KEY = "tsjxw9NjKUBUlzbTnD7orqIAdEmpGYRARvxD51jtY+o=";
         };
       };