Fix mirrors used meta target to use annotation type rather than the instance
diff --git a/lib/src/renderer.dart b/lib/src/renderer.dart
index dcc0a96..c57f219 100644
--- a/lib/src/renderer.dart
+++ b/lib/src/renderer.dart
@@ -1,6 +1,6 @@
 library mustache.renderer;
 
-@MirrorsUsed(metaTargets: const [m.mustache])
+@MirrorsUsed(metaTargets: const [m.MustacheMirrorsUsedAnnotation])
 import 'dart:mirrors';
 import 'package:mustache/mustache.dart' as m;
 import 'lambda_context.dart';