diff --git a/tls.go b/tls.go
index fc86428..f2e5aea 100644
--- a/tls.go
+++ b/tls.go
@@ -5,7 +5,7 @@
 // Package tls partially implements TLS 1.2, as specified in RFC 5246.
 package tls
 
-// BUG(agl): The crypto/tls package does not implement countermeasures
+// BUG(agl): The crypto/tls package only implements some countermeasures
 // against Lucky13 attacks on CBC-mode encryption. See
 // http://www.isg.rhul.ac.uk/tls/TLStiming.pdf and
 // https://www.imperialviolet.org/2013/02/04/luckythirteen.html.