diff --git a/webpack.config.js b/webpack.config.js
index ffe72cac7..01944a774 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -222,13 +222,13 @@ async function webpackConfig() {
               })
             ];
           } else {
-            const tmpobj = tmp.fileSync({ dir: ".", postfix: ".json" });
+            const tmpobj = tmp.fileSync({ postfix: ".json" });
             fs.writeSync(tmpobj.fd, JSON.stringify(faviconConfig));
             fs.close(tmpobj.fd);
 
             return [
               new RealFaviconPlugin({
-                faviconJson: `./${tmpobj.name}`,
+                faviconJson: path.relative(".", tmpobj.name),
                 outputPath: path.resolve(__dirname, 'well-known', lang),
                 inject: false
               }),