diff --git a/package.json b/package.json
index 40187d8..069d8fd 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "type": "module",
   "name": "chiitiler",
-  "version": "1.12.0",
+  "version": "1.12.1",
   "description": "Tiny map rendering server for MapLibre Style Spec",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
diff --git a/src/server/index.test.ts b/src/server/index.test.ts
index 35aef4a..b51f1bd 100644
--- a/src/server/index.test.ts
+++ b/src/server/index.test.ts
@@ -80,7 +80,7 @@ describe('initServer', () => {
         const res2 = await app.request(
             '/clip.gif?bbox=0,1,2,3&url=file://localdata/style.json',
         );
-        expect(res2.status).toBe(404); // invalid format will not be handled in /clip
+        expect(res2.status).toBe(400); // invalid format will not be handled in /clip
 
         const res3 = await app.request(
             'clip.png?bbox=0,0,0,0&url=file://localdata/style.json',
diff --git a/src/server/index.ts b/src/server/index.ts
index 18c8ce0..8c7833e 100644
--- a/src/server/index.ts
+++ b/src/server/index.ts
@@ -1,4 +1,4 @@
-import { Hono } from 'hono';
+import { Hono } from 'hono/quick';
 import { serve } from '@hono/node-server';
 import {
     type StyleSpecification,
@@ -117,9 +117,10 @@ function initServer(options: InitServerOptions) {
         });
 
     const clip = new Hono()
-        .get('/:filename{clip\\.png|webp|jpeg|jpg$}', async (c) => {
+        .get('/:filename_ext', async (c) => {
             // path params
-            const [_, ext] = c.req.param('filename').split('.');
+            const [filename, ext] = c.req.param('filename_ext').split('.');
+            if (filename !== 'clip') return c.body('not found', 404);
             if (!isSupportedFormat(ext)) return c.body('invalid format', 400);
 
             // query params
@@ -150,14 +151,15 @@ function initServer(options: InitServerOptions) {
                 return c.body('failed to render bbox', 400);
             }
         })
-        .post('/:filename{clip\\.png|webp|jpeg|jpg$}', async (c) => {
+        .post('/:filename_ext', async (c) => {
             // body
             const { style } = await c.req.json();
             if (!isValidStylejson(style))
                 return c.body('invalid stylejson', 400);
 
             // path params
-            const [_, ext] = c.req.param('filename').split('.');
+            const [filename, ext] = c.req.param('filename_ext').split('.');
+            if (filename !== 'clip') return c.body('not found', 404);
             if (!isSupportedFormat(ext)) return c.body('invalid format', 400);
 
             // query params