diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9311b72..7b7c71f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.3.4
+
+* Parse MTIs other than 0300.
+
 ## 0.3.3
 
 * Cleanup ISO-9797 code.
diff --git a/lib/src/message.dart b/lib/src/message.dart
index 0595928..b874e01 100644
--- a/lib/src/message.dart
+++ b/lib/src/message.dart
@@ -7,11 +7,13 @@ class Message {
 
   /// Parses a [Message] from the input byte-array.
   factory Message.parse(Uint8List data) {
+    final mti = hex.encode(data.take(2).toList()).toUpperCase();
+
     final bitmap = data.sublist(2, 10);
     final hexmap = hex.encode(bitmap);
     final v = int.parse(hexmap, radix: 16);
     final pb = v.toRadixString(2).padLeft(64, '0');
-    final message = Message('0300');
+    final message = Message(mti);
 
     final parser = _MessageParser(data);
 
@@ -273,6 +275,8 @@ class Message {
   Map<String, Object> toJson() {
     final map = <String, Object>{};
 
+    map['MTI'] = mti;
+
     for (var i = 1; i <= 64; i++) {
       final f = _data[i];
 
diff --git a/pubspec.yaml b/pubspec.yaml
index 19e12d8..3cce2ca 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: pos
 description: Dart Implementation of the ISO-8583 banking protocol for Point of Sale (POS) Devices.
-version: 0.3.3
+version: 0.3.4
 repository: https://github.com/xclud/dart_pos
 homepage: https://pwa.ir