diff --git a/protocol/src/main/resources/dart/ByteBuffer.dart b/protocol/src/main/resources/dart/ByteBuffer.dart
index 44e90ec7..50e9a131 100644
--- a/protocol/src/main/resources/dart/ByteBuffer.dart
+++ b/protocol/src/main/resources/dart/ByteBuffer.dart
@@ -21,6 +21,7 @@ class ByteBuffer implements IByteBuffer {
       writeInt(length);
       setWriteOffset(currentWriteIndex);
     } else {
+      // sublist of Int8List is deep clone
       var retainedByteBuf =
           buffer.sublist(currentWriteIndex - length, currentWriteIndex);
       setWriteOffset(beforeWriteIndex);
diff --git a/protocol/src/main/resources/gdscript/ByteBuffer.gd b/protocol/src/main/resources/gdscript/ByteBuffer.gd
index 2cee0e70..6a8ce81a 100644
--- a/protocol/src/main/resources/gdscript/ByteBuffer.gd
+++ b/protocol/src/main/resources/gdscript/ByteBuffer.gd
@@ -24,6 +24,7 @@ func adjustPadding(predictionLength: int, beforeWriteIndex: int) -> void:
 		writeInt(length)
 		setWriteOffset(currentWriteIndex)
 	else:
+        # get_partial_data of StreamPeerBuffer is deep clone
 		buffer.seek(currentWriteIndex - length)
 		var retainedByteBuf = buffer.get_partial_data(length)[1]
 		setWriteOffset(beforeWriteIndex)