diff --git a/.changeset/fix-nestjs-decorator-runtime.md b/.changeset/fix-nestjs-decorator-runtime.md
new file mode 100644
index 0000000..14c71ab
--- /dev/null
+++ b/.changeset/fix-nestjs-decorator-runtime.md
@@ -0,0 +1,5 @@
+---
+"runable": patch
+---
+
+Include the Oxc decorator runtime required by the compiled NestJS adapter.
diff --git a/packages/runable/package.json b/packages/runable/package.json
index 6a0bae5..8520068 100644
--- a/packages/runable/package.json
+++ b/packages/runable/package.json
@@ -80,6 +80,7 @@
     "@babel/parser": "catalog:",
     "@babel/traverse": "catalog:",
     "@babel/types": "catalog:",
+    "@oxc-project/runtime": "catalog:",
     "@tsdown/css": "catalog:",
     "@unhead/schema-org": "catalog:",
     "@unhead/vue": "catalog:",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index dc35585..ea13e59 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -292,6 +292,9 @@ catalogs:
     '@nestjs/platform-express':
       specifier: ^11.1.28
       version: 11.1.29
+    '@oxc-project/runtime':
+      specifier: ^0.147.0
+      version: 0.147.0
     '@tsdown/css':
       specifier: ^0.22.14
       version: 0.22.14
@@ -613,6 +616,9 @@ importers:
       '@babel/types':
         specifier: 'catalog:'
         version: 8.0.4
+      '@oxc-project/runtime':
+        specifier: 'catalog:'
+        version: 0.147.0
       '@tsdown/css':
         specifier: 'catalog:'
         version: 0.22.14(jiti@2.7.0)(postcss@8.5.26)(sass-embedded@1.102.0)(sass@1.102.0)(tsdown@0.22.14)(tsx@4.23.12)(yaml@2.9.0)
@@ -2237,6 +2243,10 @@ packages:
     cpu: [x64]
     os: [win32]
 
+  '@oxc-project/runtime@0.147.0':
+    resolution: {integrity: sha512-vAYDOvumvPwsx0GSoHj+h1qCarq2f9RmfGk3deWBJTtRUDSqvvja5x+q5bUbs7a7CgVPiQDEIx+a5fBtVIQNdA==}
+    engines: {node: ^20.19.0 || >=22.12.0}
+
   '@oxc-project/types@0.106.0':
     resolution: {integrity: sha512-QdsH3rZq480VnOHSHgPYOhjL8O8LBdcnSjM408BpPCCUc0JYYZPG9Gafl9i3OcGk/7137o+gweb4cCv3WAUykg==}
 
@@ -8088,6 +8098,8 @@ snapshots:
   '@oxc-parser/binding-win32-x64-msvc@0.106.0':
     optional: true
 
+  '@oxc-project/runtime@0.147.0': {}
+
   '@oxc-project/types@0.106.0':
     optional: true
 
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 0f65b7f..4382c02 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -62,6 +62,7 @@ catalog:
   "@nestjs/common": ^11.1.28
   "@nestjs/core": ^11.1.28
   "@nestjs/platform-express": ^11.1.28
+  "@oxc-project/runtime": ^0.147.0
   "@adonisjs/core": ^7.3.5
 
   typescript: ~6.0.3
diff --git a/tests/integration/package-tarball.test.ts b/tests/integration/package-tarball.test.ts
index 3cd9e58..90f3807 100644
--- a/tests/integration/package-tarball.test.ts
+++ b/tests/integration/package-tarball.test.ts
@@ -115,6 +115,15 @@ describe("runable npm tarball", () => {
     expect(pack.packageJson.dependencies?.unctx).toBe("^3.0.1");
     expect(pack.packageJson.devDependencies?.unctx).toBeUndefined();
   });
+
+  it("declares the Oxc decorator helpers as a runtime dependency", () => {
+    expect(pack.packageJson.dependencies?.["@oxc-project/runtime"]).toBe(
+      "^0.147.0",
+    );
+    expect(
+      pack.packageJson.devDependencies?.["@oxc-project/runtime"],
+    ).toBeUndefined();
+  });
 });
 
 describe("@runablejs/cli npm tarball", () => {