diff --git a/cmac-des3.c b/cmac-des3.c
index d2d55ca43e75fee6e1e9c0f3e928f0be33a1a688..3715d5ee2273e1175085f38ef67ed9c3d2db1671 100644
--- a/cmac-des3.c
+++ b/cmac-des3.c
@@ -1,6 +1,6 @@
 /* cmac-des3.c
 
-   CMAC using TrippleDES as the underlying cipher.
+   CMAC using TripleDES as the underlying cipher.
 
    Copyright (C) 2019 Dmitry Eremin-Solenikov
 
diff --git a/cmac64.c b/cmac64.c
index 9b711d6698ab9a2aecee550dbb0a2ccef3b064a3..2fbffc9b5ea620ace588ae14edc6feb97f89a78e 100644
--- a/cmac64.c
+++ b/cmac64.c
@@ -1,5 +1,5 @@
 /*
-   AES-CMAC-128 (rfc 4493) / CMAC-64
+   CMAC-64, NIST SP 800-38B
    Copyright (C) Stefan Metzmacher 2012
    Copyright (C) Jeremy Allison 2012
    Copyright (C) Michael Adam 2012