diff --git a/rust/lanzatool/bootspec.json b/rust/lanzatool/bootspec.json
index 59c9620..e710850 100644
--- a/rust/lanzatool/bootspec.json
+++ b/rust/lanzatool/bootspec.json
@@ -1,25 +1,23 @@
 {
-  "v1": {
-    "init": "/run/current-system/init",
-    "initrd": "/run/current-system/initrd",
-    "kernel": "/run/current-system/kernel",
-    "kernelParams": [
-      "amd_iommu=on",
-      "amd_iommu=pt",
-      "iommu=pt",
-      "kvm.ignore_msrs=1",
-      "kvm.report_ignored_msrs=0",
-      "udev.log_priority=3",
-      "systemd.unified_cgroup_hierarchy=1",
-      "loglevel=4"
-    ],
-    "label": "LanzaOS",
-    "toplevel": "/run/current-system",
-    "extension": {
-      "esp": "esp",
-      "systemd": "/run/current-system/systemd",
-      "bootctl": "/run/current-system/sw/bin/bootctl",
-      "osRelease": "/etc/os-release"
-    }
+  "init": "/run/current-system/init",
+  "initrd": "/run/current-system/initrd",
+  "kernel": "/run/current-system/kernel",
+  "kernelParams": [
+    "amd_iommu=on",
+    "amd_iommu=pt",
+    "iommu=pt",
+    "kvm.ignore_msrs=1",
+    "kvm.report_ignored_msrs=0",
+    "udev.log_priority=3",
+    "systemd.unified_cgroup_hierarchy=1",
+    "loglevel=4"
+  ],
+  "label": "LanzaOS",
+  "toplevel": "/run/current-system",
+  "extension": {
+    "esp": "esp",
+    "systemd": "/run/current-system/systemd",
+    "bootctl": "/run/current-system/sw/bin/bootctl",
+    "osRelease": "/etc/os-release"
   }
 }
\ No newline at end of file
diff --git a/rust/lanzatool/src/bootspec.rs b/rust/lanzatool/src/bootspec.rs
index 79ae670..c5463c3 100644
--- a/rust/lanzatool/src/bootspec.rs
+++ b/rust/lanzatool/src/bootspec.rs
@@ -2,14 +2,9 @@ use std::path::PathBuf;
 
 use serde::{Deserialize, Serialize};
 
-#[derive(Debug, Default, Serialize, Deserialize, PartialEq, Eq)]
-pub struct Bootspec {
-    pub v1: GenerationV1,
-}
-
 #[derive(Debug, Default, Serialize, Deserialize, PartialEq, Eq)]
 #[serde(rename_all = "camelCase")]
-pub struct GenerationV1 {
+pub struct Bootspec {
     /// Label for the system closure
     pub label: String,
     /// Path to kernel (bzImage) -- $toplevel/kernel
diff --git a/rust/lanzatool/src/install.rs b/rust/lanzatool/src/install.rs
index 681ab4e..4351757 100644
--- a/rust/lanzatool/src/install.rs
+++ b/rust/lanzatool/src/install.rs
@@ -16,30 +16,29 @@ pub fn install(
 ) -> Result<()> {
     let bootspec_doc: Bootspec = serde_json::from_slice(&fs::read(bootspec)?)?;
 
-    let esp_paths = EspPaths::new(&bootspec_doc.v1.extension.esp);
+    let esp_paths = EspPaths::new(&bootspec_doc.extension.esp);
 
     let lanzaboote_image = pe::assemble_image(
         lanzaboote_stub,
-        &bootspec_doc.v1.extension.os_release,
-        &bootspec_doc.v1.kernel_params,
+        &bootspec_doc.extension.os_release,
+        &bootspec_doc.kernel_params,
         &esp_paths.kernel,
         &esp_paths.initrd,
     )
     .expect("Failed to assemble stub");
 
     let wrapped_initrd =
-        pe::wrap_initrd(initrd_stub, &bootspec_doc.v1.initrd).expect("Failed to assemble stub");
+        pe::wrap_initrd(initrd_stub, &bootspec_doc.initrd).expect("Failed to assemble stub");
 
     // Copy the files to the ESP
     fs::create_dir_all(&esp_paths.nixos)?;
-    fs::copy(bootspec_doc.v1.kernel, esp_paths.kernel)?;
+    fs::copy(bootspec_doc.kernel, esp_paths.kernel)?;
     fs::copy(wrapped_initrd, esp_paths.initrd)?;
 
     fs::create_dir_all(&esp_paths.linux)?;
     fs::copy(lanzaboote_image, esp_paths.lanzaboote_image)?;
 
     let systemd_boot = bootspec_doc
-        .v1
         .extension
         .systemd
         .join("lib/systemd/boot/efi/systemd-bootx64.efi");