diff --git a/repl/vite.config.js b/repl/vite.config.js
index 728a6e22..1d3f3e86 100644
--- a/repl/vite.config.js
+++ b/repl/vite.config.js
@@ -7,7 +7,7 @@ export default defineConfig({
   plugins: [react()],
   build: {
     outDir: '../out',
-    sourcemap: false,
+    sourcemap: true,
     rollupOptions: {
       plugins: [visualizer({ template: 'treemap' })],
     },