diff --git a/vite.config.ts b/vite.config.ts
index 4942ac6..bf93bf2 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -17,11 +17,15 @@ export default defineConfig(({ mode }) => {
     build: {
       // No content hashes in output filenames — cache-busting on redeploy is
       // handled at the hosting/nginx level instead (see docs/bitrix-integration.md).
+      // Flat layout (no "assets/" subfolder): one deployment target's own
+      // folder is literally named "assets" (local/modules/vniigaz.bpmn/assets/),
+      // and nesting output under another "assets/" there doubled the path
+      // segment (.../assets/assets/index.js, 404). Flat works everywhere.
       rolldownOptions: {
         output: {
-          entryFileNames: 'assets/[name].js',
-          chunkFileNames: 'assets/[name].js',
-          assetFileNames: 'assets/[name].[ext]',
+          entryFileNames: '[name].js',
+          chunkFileNames: '[name].js',
+          assetFileNames: '[name].[ext]',
         },
       },
     },