diff --git a/lib/src/kdbx_xml.dart b/lib/src/kdbx_xml.dart
index 5426e37..572f77d 100644
--- a/lib/src/kdbx_xml.dart
+++ b/lib/src/kdbx_xml.dart
@@ -72,6 +72,9 @@ abstract class KdbxSubTextNode<T> extends KdbxSubNode<T> {
 
   @override
   void set(T value) {
+    if (get() == value) {
+      return;
+    }
     node.isDirty = true;
     final el =
         node.node.findElements(name).singleWhere((x) => true, orElse: () {