diff --git a/httpserver/bin/mini_file_server.dart b/httpserver/bin/mini_file_server.dart
index 2e8bff6..05f481b 100644
--- a/httpserver/bin/mini_file_server.dart
+++ b/httpserver/bin/mini_file_server.dart
@@ -39,7 +39,7 @@ Future main() async {
     } else {
       print("Can't open ${targetFile.path}.");
       req.response.statusCode = HttpStatus.notFound;
-      await req.response.close();
     }
+      await req.response.close();
   }
 }