diff --git a/packages/neutrino-preset-web/index.js b/packages/neutrino-preset-web/index.js
index 6799f6c..0dcee41 100644
--- a/packages/neutrino-preset-web/index.js
+++ b/packages/neutrino-preset-web/index.js
@@ -105,7 +105,7 @@ module.exports = neutrino => {
     });
 
     config
-      .devtool('eval')
+      .devtool('source-map')
       .entry('index')
         .add(`webpack-dev-server/client?${protocol}://${host}:${port}/`)
         .add('webpack/hot/dev-server');