diff --git a/nixos/tests/openstack-image.nix b/nixos/tests/openstack-image.nix
index 8a21dd1b599e..97c9137fe1d6 100644
--- a/nixos/tests/openstack-image.nix
+++ b/nixos/tests/openstack-image.nix
@@ -16,6 +16,12 @@ let
         ../maintainers/scripts/openstack/openstack-image.nix
         ../modules/testing/test-instrumentation.nix
         ../modules/profiles/qemu-guest.nix
+        {
+          # Needed by nixos-rebuild due to lack of network access.
+          system.extraDependencies = with pkgs; [
+            stdenv
+          ];
+        }
       ];
     }).config.system.build.openstackImage + "/nixos.qcow2";