diff --git a/TeleSharp.TL/TLObject.cs b/TeleSharp.TL/TLObject.cs
index 3bc14765..0c600d72 100644
--- a/TeleSharp.TL/TLObject.cs
+++ b/TeleSharp.TL/TLObject.cs
@@ -36,7 +36,6 @@ public byte[] Serialize()
         }
         public void Serialize(BinaryWriter writer)
         {
-            writer.Write(Constructor);
             SerializeBody(writer);
         }
         public void Deserialize(BinaryReader reader)