diff --git a/squinnondation/messages.py b/squinnondation/messages.py
index 7eb7eb5..1cce4c6 100644
--- a/squinnondation/messages.py
+++ b/squinnondation/messages.py
@@ -284,7 +284,7 @@ class DataTLV(TLV):
         self.nonce = socket.ntohl(int.from_bytes(raw_data[10:14], sys.byteorder))
         self.data = raw_data[14:len(self)]
         if self.data[-1] == 0:
-            self.data = self[:-1]
+            self.data = self.data[:-1]
 
     def marshal(self) -> bytes:
         return self.type.to_bytes(1, sys.byteorder) + \