diff --git a/scripts/contracts/generate.mjs b/scripts/contracts/generate.mjs
index 2ce4a8f31..fa5c98396 100644
--- a/scripts/contracts/generate.mjs
+++ b/scripts/contracts/generate.mjs
@@ -145,9 +145,7 @@ async function main() {
   }
   const files = await generateArtifacts(source, target);
   if (check) {
-    const temp = await mkdtemp(path.join(os.tmpdir(), 'lightnvr-contract-check-'));
-    try { await writeArtifacts(files, temp); await checkArtifacts(files, outputRoot); }
-    finally { await rm(temp, {recursive: true, force: true}); }
+    await checkArtifacts(files, outputRoot);
   } else await writeArtifacts(files, outputRoot);
   console.log(`${check ? 'Checked' : 'Generated'} ${files.size} contract artifacts (${target})`);
 }
diff --git a/tests/contracts/tooling/generator.test.mjs b/tests/contracts/tooling/generator.test.mjs
index 247e40987..90a14e356 100644
--- a/tests/contracts/tooling/generator.test.mjs
+++ b/tests/contracts/tooling/generator.test.mjs
@@ -56,6 +56,13 @@ test('native Python and web generation are deterministic; drift check fails with
   execFileSync('python3',[path.join(root,'scripts/contracts/generate_native.py'),'--source',source,'--output',path.join(directory,'direct.h')]);
   assert.equal(await readFile(path.join(directory,'direct.h'),'utf8'),artifacts.get(nativePath));
   await checkArtifacts(again,directory);
+  for(const [target,count] of [['all',4],['native',1],['web',3]]) {
+    const checked=spawnSync(process.execPath,[path.join(root,'scripts/contracts/generate.mjs'),
+      '--check',`--target=${target}`,'--source',source,'--output-root',directory],{encoding:'utf8'});
+    assert.equal(checked.status,0,checked.stderr);
+    assert.match(checked.stdout,new RegExp(`Checked ${count} contract artifacts`));
+    await checkArtifacts(artifacts,directory);
+  }
   const corrupt = path.join(directory,webPaths[0]);
   await writeFile(corrupt,'deliberate drift\n');
   const result=spawnSync(process.execPath,[path.join(root,'scripts/contracts/generate.mjs'),'--check','--source',source,'--output-root',directory],{encoding:'utf8'});