diff --git a/nixos/tests/installer.nix b/nixos/tests/installer.nix
index 564792a1a9d..b32012ea034 100644
--- a/nixos/tests/installer.nix
+++ b/nixos/tests/installer.nix
@@ -252,9 +252,9 @@ in {
         ''
           $machine->succeed(
               "parted /dev/vda mklabel msdos",
-              "parted /dev/vda -- mkpart primary 1M 2048M", # first PV
+              "parted /dev/vda -- mkpart primary 1M 2048M", # PV1
               "parted /dev/vda -- set 1 lvm on",
-              "parted /dev/vda -- mkpart primary 2048M -1s", # second PV
+              "parted /dev/vda -- mkpart primary 2048M -1s", # PV2
               "parted /dev/vda -- set 2 lvm on",
               "udevadm settle",
               "pvcreate /dev/vda1 /dev/vda2",