diff --git a/lib/src/hive.dart b/lib/src/hive.dart
index 3f106f107..865975f72 100644
--- a/lib/src/hive.dart
+++ b/lib/src/hive.dart
@@ -37,9 +37,10 @@ class Hive {
   /// ```
   static void registerAdapter<T>(
     String typeName,
-    T? Function(dynamic json) fromJson,
-  ) {
-    _typeRegistry.register<T>(Isar.fastHash(typeName), fromJson);
+    T? Function(dynamic json) fromJson, [
+    Type? type,
+  ]) {
+    _typeRegistry.register<T>(Isar.fastHash(typeName), fromJson, type);
   }
 
   /// Get or open the box with [name] in the given [directory]. If no directory
diff --git a/lib/src/impl/type_registry.dart b/lib/src/impl/type_registry.dart
index c8e0d7e8b..80399cead 100644
--- a/lib/src/impl/type_registry.dart
+++ b/lib/src/impl/type_registry.dart
@@ -12,14 +12,18 @@ class _TypeRegistry {
   final Map<int, _TypeHandler<dynamic>> _registry = {};
   final Map<Type, _TypeHandler<dynamic>> _reverseRegistry = {..._builtinTypes};
 
-  void register<T>(int typeId, T? Function(dynamic json) fromJson) {
+  void register<T>(
+    int typeId,
+    T? Function(dynamic json) fromJson,
+    Type? type,
+  ) {
     if (T == dynamic) {
       throw ArgumentError('Cannot register dynamic type.');
     }
 
     final handler = _TypeHandler<T>(typeId, fromJson);
     _registry[typeId] = handler;
-    _reverseRegistry[T] = handler;
+    _reverseRegistry[type ?? T] = handler;
   }
 
   T fromJson<T>(int? typeId, dynamic json) {