diff --git a/nixos/tests/installer.nix b/nixos/tests/installer.nix
index 1fe78feceaaa..6c7fd6c575bf 100644
--- a/nixos/tests/installer.nix
+++ b/nixos/tests/installer.nix
@@ -467,11 +467,11 @@ in {
   filesystemEncryptedWithKeyfile = makeInstallerTest "filesystemEncryptedWithKeyfile"
     { createPartitions = ''
        $machine->succeed(
-          "parted /dev/vda mklabel msdos",
-          "parted /dev/vda -- mkpart primary ext2 1M 50MB", # /boot
-          "parted /dev/vda -- mkpart primary linux-swap 50M 1024M",
-          "parted /dev/vda -- mkpart primary 1024M 1280M", # LUKS with keyfile
-          "parted /dev/vda -- mkpart primary 1280M -1s",
+          "parted --script /dev/vda mklabel msdos",
+          "parted --script /dev/vda -- mkpart primary ext2 1M 50MB", # /boot
+          "parted --script /dev/vda -- mkpart primary linux-swap 50M 1024M",
+          "parted --script /dev/vda -- mkpart primary 1024M 1280M", # LUKS with keyfile
+          "parted --script /dev/vda -- mkpart primary 1280M -1s",
           "udevadm settle",
           "mkswap /dev/vda2 -L swap",
           "swapon -L swap",