diff --git a/python/installer/__main__.py b/python/installer/__main__.py
index 40e9d22..cc79dd8 100644
--- a/python/installer/__main__.py
+++ b/python/installer/__main__.py
@@ -188,7 +188,7 @@ def create_zfs_datasets() -> None:
             "normalization=none",
             "-o",
             "utf8only=off",
-            "root_pool/nix_build",
+            "root_pool/nix/var/nix/builds",
         )
     )
     datasets = run_output(("zfs", "list", "-o", "name"))
@@ -198,7 +198,7 @@ def create_zfs_datasets() -> None:
         "root_pool/home",
         "root_pool/var",
         "root_pool/nix",
-        "root_pool/nix_build",
+        "root_pool/nix/var/nix/builds",
     }
     missing_datasets = expected_datasets.difference(datasets.splitlines())
     if missing_datasets:
@@ -264,7 +264,7 @@ def create_nix_hardware_file(mnt_dir: str, disks: Sequence[str], encrypt: str |
         '    "/home" = {\n      device = "root_pool/home";\n      fsType = "zfs";\n    };\n\n'
         '    "/var" = {\n      device = "root_pool/var";\n      fsType = "zfs";\n    };\n\n'
         '    "/nix" = {\n      device = "root_pool/nix";\n      fsType = "zfs";\n    };\n\n'
-        '    "/nix_build" = {\n      device = "root_pool/nix_build";\n      fsType = "zfs";\n    };\n\n'
+        '    "/nix/var/nix/builds" = {\n      device = "root_pool/nix/var/nix/builds";\n      fsType = "zfs";\n    };\n\n'
         '    "/boot" = {\n'
         f'      device = "/dev/disk/by-uuid/{get_boot_drive_id(disks[0])}";\n'
         '      fsType = "vfat";\n      options = [\n        "fmask=0077"\n'
@@ -287,7 +287,9 @@ def install_nixos(mnt_dir: str, disks: Sequence[str], encrypt: str | None) -> No
     run_output(("mount", "-o", "X-mount.mkdir", "-t", "zfs", "root_pool/home", f"{mnt_dir}/home"))
     run_output(("mount", "-o", "X-mount.mkdir", "-t", "zfs", "root_pool/var", f"{mnt_dir}/var"))
     run_output(("mount", "-o", "X-mount.mkdir", "-t", "zfs", "root_pool/nix", f"{mnt_dir}/nix"))
-    run_output(("mount", "-o", "X-mount.mkdir", "-t", "zfs", "root_pool/nix_build", f"{mnt_dir}/nix_build"))
+    run_output(
+        ("mount", "-o", "X-mount.mkdir", "-t", "zfs", "root_pool/nix/var/nix/builds", f"{mnt_dir}/nix/var/nix/builds")
+    )
 
     for disk in disks:
         run_output(("mkfs.vfat", "-n", "EFI", f"{disk}-part1"))