Fix local variable
diff --git a/lib/registry.dart b/lib/registry.dart
index 213acd1..2054ae2 100644
--- a/lib/registry.dart
+++ b/lib/registry.dart
@@ -281,8 +281,8 @@
/// Maps id to entry. Each entry contains the id, the element, its tags,
/// and a capability required to remove it again.
- final Map<int, _RegistryEntry> _entries = new HashMap();
- final Map<Object, Set<int>> _tag2id = new HashMap();
+ final _entries = new HashMap<int, _RegistryEntry>();
+ final _tag2id = new HashMap<Object, Set<int>>();
/// Create a new registry managed by the created [RegistryManager].
///
