diff --git a/.putout.json b/.putout.json
index 9827b5e3..cbb9353c 100644
--- a/.putout.json
+++ b/.putout.json
@@ -6,6 +6,9 @@
         "fontello.json"
     ],
     "match": {
+        "*.js": {
+            "convert-esm-to-commonjs": "on"
+        },
         "*.md": {
             "convert-commonjs-to-esm": "on"
         },
diff --git a/server/route.spec.js b/server/route.spec.js
index 0752cd80..1ce0266b 100644
--- a/server/route.spec.js
+++ b/server/route.spec.js
@@ -1,5 +1,7 @@
 'use strict';
 
+const {Readable} = require('stream');
+
 const path = require('path');
 const fs = require('fs');
 
@@ -25,6 +27,10 @@ const {request} = serveOnce(cloudcmd, {
     config: defaultConfig,
 });
 
+const {stringify} = JSON;
+
+const {assign} = Object;
+
 test('cloudcmd: route: buttons: no console', async (t) => {
     const options = {
         config: {
@@ -222,15 +228,24 @@ test('cloudcmd: route: not found', async (t) => {
 test('cloudcmd: route: sendIndex: encode', async (t) => {
     const name = '"><svg onload=alert(3);>';
     const nameEncoded = '&quot;&gt;&lt;svg&nbsp;onload=alert(3);&gt;';
+    const path = '/';
     const files = [{
         name,
     }];
     
-    const read = stub().returns({
-        type: 'directory',
+    const stream = Readable.from(stringify({
+        path,
         files,
+    }));
+    
+    assign(stream, {
+        path,
+        files,
+        type: 'directory',
     });
     
+    const read = stub().resolves(stream);
+    
     mockRequire('win32', {
         read,
     });
@@ -242,7 +257,8 @@ test('cloudcmd: route: sendIndex: encode', async (t) => {
         configManager: createConfigManager(),
     });
     
-    const {body} = await request.get('/');
+    const response = await request.get('/');
+    const {body} = response;
     
     stopAll();
     
@@ -252,16 +268,25 @@ test('cloudcmd: route: sendIndex: encode', async (t) => {
 
 test('cloudcmd: route: sendIndex: encode: not encoded', async (t) => {
     const name = '"><svg onload=alert(3);>';
+    const path = '/';
     const files = [{
         name,
     }];
     
-    const read = async (path) => ({
+    const stream = Readable.from(stringify({
         path,
         files,
+    }));
+    
+    assign(stream, {
+        path,
+        files,
+        type: 'directory',
     });
     
-    mockRequire('flop', {
+    const read = stub().resolves(stream);
+    
+    mockRequire('win32', {
         read,
     });
     
@@ -279,16 +304,25 @@ test('cloudcmd: route: sendIndex: encode: not encoded', async (t) => {
 
 test('cloudcmd: route: sendIndex: ddos: render', async (t) => {
     const name = '$$$\'&quot;';
+    const path = '/';
     const files = [{
         name,
     }];
     
-    const read = async (path) => ({
+    const stream = Readable.from(stringify({
         path,
         files,
+    }));
+    
+    assign(stream, {
+        path,
+        files,
+        type: 'directory',
     });
     
-    mockRequire('flop', {
+    const read = stub().resolves(stream);
+    
+    mockRequire('win32', {
         read,
     });