diff --git a/i2p2www/spec/proposals/152-ecies-tunnels.rst b/i2p2www/spec/proposals/152-ecies-tunnels.rst
index c820a73e..91e8a584 100644
--- a/i2p2www/spec/proposals/152-ecies-tunnels.rst
+++ b/i2p2www/spec/proposals/152-ecies-tunnels.rst
@@ -6,7 +6,7 @@ ECIES Tunnels
     :author: chisana, zzz, orignal
     :created: 2019-07-04
     :thread: http://zzz.i2p/topics/2737
-    :lastupdated: 2020-10-09
+    :lastupdated: 2020-10-24
     :status: Open
     :target: 0.9.51
 
@@ -661,6 +661,9 @@ Failing to use unique keys opens an attack vector for colluding hops to confirm
   sesk = GENERATE_PRIVATE()
   sepk = DERIVE_PUBLIC(sesk)
 
+  // MixHash(sepk)
+  h = SHA256(h || sepk);
+
   End of "e" message pattern.
 
   This is the "es" message pattern: