diff --git a/src/utils.tsx b/src/utils.tsx
index 3fb3dc1..03bdcbe 100644
--- a/src/utils.tsx
+++ b/src/utils.tsx
@@ -154,7 +154,7 @@ export async function transpile(path: string): Promise<string> {
       entrypoints: [path],
       format: 'esm',
       minify: false,
-      sourcemap: 'none',
+      sourcemap: process.env.NODE_ENV === 'production' ? 'none' : 'inline',
     })
 
     if (!result.outputs[0]) throw new Error(`Failed to build ${path}`)
@@ -169,4 +169,4 @@ export async function transpile(path: string): Promise<string> {
 // redirect to the referrer, or fallback if no referrer
 export function redirectBack(c: Context, fallback = "/") {
   return c.redirect(c.req.header("Referer") || fallback)
-}
\ No newline at end of file
+}