diff --git a/scripts/clean.spec.ts b/scripts/clean.spec.ts
index aada0667ef..c724453283 100644
--- a/scripts/clean.spec.ts
+++ b/scripts/clean.spec.ts
@@ -60,16 +60,18 @@ describe('RepositoryCleaner', () => {
     expect(existsSync(join(root, 'products/shell/lib'))).toBe(true)
   })
 
-  it('removes the native Landlock entry output that emits directly to lib', async () => {
+  it('removes the native Landlock entry output and solution build info', async () => {
     const root = fixture()
     const entry = 'native/landlock-run/packages/entry'
     addProject(root, entry, 'lib')
     write(join(root, entry, 'lib/index.js'))
+    write(join(root, 'native/landlock-run/tsconfig.tsbuildinfo'))
 
     await new RepositoryCleaner(root).clean()
 
     expect(existsSync(join(root, entry, 'lib'))).toBe(false)
     expect(existsSync(join(root, entry, 'src/index.ts'))).toBe(true)
+    expect(existsSync(join(root, 'native/landlock-run/tsconfig.tsbuildinfo'))).toBe(false)
   })
 
   it('refuses project outputs reached through a symlink outside the repository', async () => {
diff --git a/scripts/clean.ts b/scripts/clean.ts
index 1224fe8420..68e4ff4e71 100644
--- a/scripts/clean.ts
+++ b/scripts/clean.ts
@@ -72,6 +72,11 @@ export class RepositoryCleaner {
     for (const entry of await readdir(this.root, { withFileTypes: true })) {
       if (entry.isFile() && entry.name.endsWith('.tsbuildinfo')) targets.add(join(this.root, entry.name))
     }
+    await this.addIfPresent(
+      targets,
+      join(this.root, 'native/landlock-run/tsconfig.tsbuildinfo'),
+      canonicalRoot,
+    )
 
     // The root project-reference graph is the source of truth for live build targets.
     // Each emitting project declares lib/types as outDir; its parent lib also owns