diff --git a/packages/opencode/script/build.ts b/packages/opencode/script/build.ts
index 35812f953dd..2f2edb4ff5a 100755
--- a/packages/opencode/script/build.ts
+++ b/packages/opencode/script/build.ts
@@ -61,6 +61,7 @@ const createEmbeddedWebUIBundle = async () => {
   await $`bun run --cwd ${appDir} build`
   const files = (await Array.fromAsync(new Bun.Glob("**/*").scan({ cwd: dist })))
     .map((file) => file.replaceAll("\\", "/"))
+    .filter((file) => !file.endsWith(".map"))
     .sort()
   const imports = files.map((file, i) => {
     const spec = path.relative(dir, path.join(dist, file)).replaceAll("\\", "/")