diff --git a/standards/application/reliable-channel-api.md b/standards/application/reliable-channel-api.md
index f1aab18..e8eecbc 100644
--- a/standards/application/reliable-channel-api.md
+++ b/standards/application/reliable-channel-api.md
@@ -139,8 +139,6 @@ types:
         parameters:
           - name: plaintext
             type: array<byte>
-          - name: encryptionKey
-            type: array<byte>
         returns:
           type: result<array<byte>, error>
       decrypt:
@@ -149,8 +147,6 @@ types:
         parameters:
           - name: ciphertext
             type: array<byte>
-          - name: encryptionKey
-            type: array<byte>
         returns:
           type: result<array<byte>, error>
 ```