diff --git a/lib/kdbx.dart b/lib/kdbx.dart
index c2630c1..31b55e8 100644
--- a/lib/kdbx.dart
+++ b/lib/kdbx.dart
@@ -7,6 +7,7 @@ export 'src/kdbx_consts.dart';
 export 'src/kdbx_custom_data.dart';
 export 'src/kdbx_entry.dart';
 export 'src/kdbx_format.dart';
+export 'src/kdbx_group.dart';
 export 'src/kdbx_header.dart'
     show
         KdbxException,
diff --git a/lib/src/kdbx_format.dart b/lib/src/kdbx_format.dart
index 2814895..811c785 100644
--- a/lib/src/kdbx_format.dart
+++ b/lib/src/kdbx_format.dart
@@ -169,7 +169,7 @@ class KdbxFile {
 
   void dirtyObject(KdbxObject kdbxObject) {
     dirtyObjects.add(kdbxObject);
-    dirtyObjects.clear();
+    _dirtyObjectsChanged.add(dirtyObjects);
   }
 
   void dispose() {