diff --git a/src/node.py b/src/node.py
index 627c39e..09a9e1c 100644
--- a/src/node.py
+++ b/src/node.py
@@ -95,7 +95,7 @@ async def user_src(message: Req):
     source_ip = message.source_ip
     dest_ip = message.dest_ip
     capsule, ct = message.capsule_ct
-    capsule_ct = (capsule, ct.to_bytes())
+    capsule_ct = (capsule, ct.to_bytes(32))
     rk = message.rk
 
     processed_message = ReEncrypt(rk, capsule_ct)