diff --git a/packages/subprocess/subprocess-local/package.json b/packages/subprocess/subprocess-local/package.json
index 943fcc7ed9..bdf9a7e57f 100644
--- a/packages/subprocess/subprocess-local/package.json
+++ b/packages/subprocess/subprocess-local/package.json
@@ -38,9 +38,10 @@
     "lib/runner.js",
     "lib/runner-*.js",
     "lib/output.js",
+    "lib/spawn.js",
+    "lib/spawn-*.js",
     "scripts/ensure-spawn-helper.mjs",
-    "lib/types/**/*.d.ts",
-    "lib/spawn.js"
+    "lib/types/**/*.d.ts"
   ],
   "scripts": {
     "postinstall": "node scripts/ensure-spawn-helper.mjs"
diff --git a/scripts/check-workspace-constraints.ts b/scripts/check-workspace-constraints.ts
index 4934270d62..cbe520b3af 100644
--- a/scripts/check-workspace-constraints.ts
+++ b/scripts/check-workspace-constraints.ts
@@ -189,6 +189,8 @@ const packageFileExtras: Readonly<Record<string, readonly string[]>> = {
     'lib/runner.js',
     'lib/runner-*.js',
     'lib/output.js',
+    'lib/spawn.js',
+    'lib/spawn-*.js',
     'scripts/ensure-spawn-helper.mjs',
   ],
   // tsdown shares the repository/pack code between the lib entry and the bin