diff --git a/nixos/modules/virtualisation/openstack-config.nix b/nixos/modules/virtualisation/openstack-config.nix
index 7f4799d1719a..9d8f2ac245d6 100644
--- a/nixos/modules/virtualisation/openstack-config.nix
+++ b/nixos/modules/virtualisation/openstack-config.nix
@@ -29,6 +29,9 @@ with lib;
       passwordAuthentication = mkDefault false;
     };
 
+    # Force getting the hostname from Openstack metadata.
+    networking.hostName = mkDefault "";
+
     systemd.services.openstack-init = {
       path = [ pkgs.wget ];
       description = "Fetch Metadata on startup";