diff --git a/asyncvnc.py b/asyncvnc.py
index 0d241be..56a61e2 100644
--- a/asyncvnc.py
+++ b/asyncvnc.py
@@ -87,7 +87,7 @@ def write(self, text: str):
         """
 
         data = text.encode('latin-1')
-        self.writer.write(b'\x06\x00' + len(data).to_bytes(4, 'big') + data)
+        self.writer.write(b'\x06\x00\x00\x00' + len(data).to_bytes(4, 'big') + data)
 
 
 @dataclass
@@ -433,11 +433,11 @@ class UpdateType(Enum):
     #: Video update.
     VIDEO = 0
 
-    #: Clipboard update.
-    CLIPBOARD = 2
-
     #: Bell update.
-    BELL = 3
+    BELL = 2
+
+    #: Clipboard update.
+    CLIPBOARD = 3
 
 
 @dataclass
diff --git a/tests/test_clipboard.py b/tests/test_clipboard.py
index 3028972..f8c6673 100644
--- a/tests/test_clipboard.py
+++ b/tests/test_clipboard.py
@@ -5,4 +5,4 @@
 def test_write():
     clipboard = Clipboard(writer=BytesIO())
     clipboard.write('hello world!')
-    assert clipboard.writer.getvalue() == b'\x06\x00\x00\x00\x00\x0chello world!'
+    assert clipboard.writer.getvalue() == b'\x06\x00\x00\x00\x00\x00\x00\x0chello world!'