diff --git a/pages/api/capture/[[...path]].js b/pages/api/capture/[[...path]].js
index 006702c5..4fa6fff1 100644
--- a/pages/api/capture/[[...path]].js
+++ b/pages/api/capture/[[...path]].js
@@ -2,7 +2,7 @@ import Pageres from 'pageres'
 import path from 'path'
 
 export default async function handler (req, res) {
-  const url = 'http://' + path.join('localhost:3000', ...(req.query.path || []))
+  const url = process.env.SELF_URL + '/' + path.join(...(req.query.path || []))
   res.setHeader('Content-Type', 'image/png')
   const streams = await new Pageres({ crop: true, delay: 1 })
     .src(url, ['600x300'])