diff --git a/release.nix b/release.nix
index e10380c3..4668efc3 100644
--- a/release.nix
+++ b/release.nix
@@ -197,7 +197,7 @@ in rec {
 
           # Create an admin account and some other state.
           $machine->succeed
-              ( "su hydra -c \"hydra-create-user root --email-address 'e.dolstra\@tudelft.nl' --password foobar --role admin\""
+              ( "su - hydra -c \"hydra-create-user root --email-address 'alice\@example.org' --password foobar --role admin\""
               , "mkdir /run/jobset /tmp/nix"
               , "chmod 755 /run/jobset /tmp/nix"
               , "cp ${./tests/api-test.nix} /run/jobset/default.nix"
@@ -207,11 +207,11 @@ in rec {
 
           # Start the web interface with some weird settings.
           $machine->succeed("systemctl stop hydra-server hydra-evaluator hydra-queue-runner");
-          $machine->mustSucceed("su hydra -c 'NIX_STORE_DIR=/tmp/nix/store NIX_LOG_DIR=/tmp/nix/var/log/nix NIX_STATE_DIR=/tmp/nix/var/nix DBIC_TRACE=1 hydra-server -d' >&2 &");
+          $machine->mustSucceed("su - hydra -c 'NIX_STORE_DIR=/tmp/nix/store NIX_LOG_DIR=/tmp/nix/var/log/nix NIX_STATE_DIR=/tmp/nix/var/nix NIX_REMOTE= DBIC_TRACE=1 hydra-server -d' >&2 &");
           $machine->waitForOpenPort("3000");
 
           # Run the API tests.
-          $machine->mustSucceed("su hydra -c 'perl ${./tests/api-test.pl}' >&2");
+          $machine->mustSucceed("su - hydra -c 'perl ${./tests/api-test.pl}' >&2");
         '';
   });
 
diff --git a/tests/api-test.pl b/tests/api-test.pl
index faf23ee1..4ee2dd7a 100644
--- a/tests/api-test.pl
+++ b/tests/api-test.pl
@@ -49,7 +49,7 @@ ok(exists $jobset->{jobsetinputs}->{"my-src"}, "The new jobset has a 'my-src' in
 
 ok($jobset->{jobsetinputs}->{"my-src"}->{jobsetinputalts}->[0] eq "/run/jobset", "The 'my-src' input is in /run/jobset");
 
-system("NIX_STORE_DIR=/tmp/nix/store NIX_LOG_DIR=/tmp/nix/var/log/nix NIX_STATE_DIR=/tmp/nix/var/nix hydra-evaluator sample default");
+system("NIX_STORE_DIR=/tmp/nix/store NIX_LOG_DIR=/tmp/nix/var/log/nix NIX_STATE_DIR=/tmp/nix/var/nix NIX_REMOTE= hydra-evaluator sample default");
 $result = request_json({ uri => '/jobset/sample/default/evals' });
 ok($result->code() == 200, "Can get evals of a jobset");
 my $evals = decode_json($result->content())->{evals};