diff --git a/doc/example-echo.dox b/doc/example-echo.dox
index b571de68..3267b5a7 100644
--- a/doc/example-echo.dox
+++ b/doc/example-echo.dox
@@ -279,12 +279,12 @@ be provided via options:
 \code
 echo-client --client-private-key=client_key_448 \
             --server-public-key=server_key_448.pub \
-            Noise_KK_448_ChaChaPoly_BLAKE2b hostname 7000
+            Noise_NN_448_ChaChaPoly_BLAKE2b hostname 7000
 
 echo-client --client-private-key=client_key_448 \
             --server-public-key=server_key_448.pub \
             --psk=pskfile \
-            NoisePSK_KK_448_ChaChaPoly_BLAKE2b hostname 7000
+            NoisePSK_NN_448_ChaChaPoly_BLAKE2b hostname 7000
 \endcode
 
 After performing the handshake, the client reads lines of text from its