diff --git a/tests/nixos/containers/containers.nix b/tests/nixos/containers/containers.nix
index e721be48f58..c8ee78a4a58 100644
--- a/tests/nixos/containers/containers.nix
+++ b/tests/nixos/containers/containers.nix
@@ -56,8 +56,8 @@
     host.fail("nix build -v --auto-allocate-uids --no-sandbox -L --offline --impure --file ${./id-test.nix} --argstr name id-test-6 --arg uidRange true")
 
     # Run systemd-nspawn in a Nix build.
-    #host.succeed("nix build -v --auto-allocate-uids --sandbox -L --offline --impure --file ${./systemd-nspawn.nix} --argstr nixpkgs ${nixpkgs}")
-    #host.succeed("[[ $(cat ./result/msg) = 'Hello World' ]]")
+    host.succeed("nix build -v --auto-allocate-uids --sandbox -L --offline --impure --file ${./systemd-nspawn.nix} --argstr nixpkgs ${nixpkgs}")
+    host.succeed("[[ $(cat ./result/msg) = 'Hello World' ]]")
   '';
 
 }
diff --git a/tests/nixos/containers/systemd-nspawn.nix b/tests/nixos/containers/systemd-nspawn.nix
index f54f32f2af5..1dad4ebd754 100644
--- a/tests/nixos/containers/systemd-nspawn.nix
+++ b/tests/nixos/containers/systemd-nspawn.nix
@@ -73,6 +73,8 @@ runCommand "test"
       --resolv-conf=off \
       --bind-ro=/nix/store \
       --bind=$out \
+      --bind=/proc:/run/host/proc \
+      --bind=/sys:/run/host/sys \
       --private-network \
       $toplevel/init
   ''