diff --git a/packages/acn/src/pdu/rlp.ts b/packages/acn/src/pdu/rlp.ts
index bf8e9dc..3190f4d 100644
--- a/packages/acn/src/pdu/rlp.ts
+++ b/packages/acn/src/pdu/rlp.ts
@@ -1,4 +1,5 @@
-import { RootLayerPDU } from '../models';
+import pdu from '.';
+import { Protocols, RootLayerPDU, SessionDataTransportPDU } from '../models';
 import { toHex } from '../utils';
 
 function decode(bytes: Uint8Array): RootLayerPDU {
@@ -49,7 +50,11 @@ function decode(bytes: Uint8Array): RootLayerPDU {
   const dataOffset = headerOffset + 16;
   // NOTE(jwetzell): flags/lengthH + lengthL + lengthX + vector + header
   const dataLength = length - (1 + 1 + (lengthFlag ? 1 : 0) + 4 + 16);
-  const data = bytes.subarray(dataOffset, dataOffset + dataLength);
+  let data: SessionDataTransportPDU | Uint8Array = bytes.subarray(dataOffset, dataOffset + dataLength);
+
+  if (vector === Protocols.SDT) {
+    data = pdu.sdt.decode(data);
+  } 
 
   return {
     vector,