diff --git a/release.nix b/release.nix
index 6d61b7963597..ef5d9f4923d8 100644
--- a/release.nix
+++ b/release.nix
@@ -241,7 +241,7 @@ in {
     let
       testsFor = system:
         mapAttrsRecursiveCond (x: !x ? test) (n: v: listToAttrs [(nameValuePair system v.test)])
-          (import ./tests { inherit system; });
+          (import ./tests { inherit nixpkgs system; });
     in fold recursiveUpdate {} (map testsFor systems);
 
 }
diff --git a/tests/default.nix b/tests/default.nix
index 3fc31cf0de95..35c03a3b7083 100644
--- a/tests/default.nix
+++ b/tests/default.nix
@@ -1,4 +1,7 @@
-{ system ? builtins.currentSystem, minimal ? false }:
+{ nixpkgs ? <nixpkgs>
+, system ? builtins.currentSystem
+, minimal ? false
+}:
 
 with import ../lib/testing.nix { inherit system minimal; };
 
@@ -30,4 +33,5 @@ with import ../lib/testing.nix { inherit system minimal; };
   tomcat = makeTest (import ./tomcat.nix);
   trac = makeTest (import ./trac.nix);
   xfce = makeTest (import ./xfce.nix);
+  run-in-machine = import ./run-in-machine.nix { inherit nixpkgs system; };
 }
diff --git a/tests/run-in-machine.nix b/tests/run-in-machine.nix
index d3c3d294b732..75bd161ec9ef 100644
--- a/tests/run-in-machine.nix
+++ b/tests/run-in-machine.nix
@@ -5,6 +5,6 @@
 with import ../lib/testing.nix { inherit system; };
 
 runInMachine {
-  drv = (import nixpkgs { }).aterm;
+  drv = (import nixpkgs { inherit system; }).aterm;
   machine = { config, pkgs, ... }: { services.sshd.enable = true; };
 }