diff --git a/src/libsodium/crypto_stream/chacha20/ref/stream_chacha20_ref.c b/src/libsodium/crypto_stream/chacha20/ref/stream_chacha20_ref.c
index 5a64fd48..e5ca1c95 100644
--- a/src/libsodium/crypto_stream/chacha20/ref/stream_chacha20_ref.c
+++ b/src/libsodium/crypto_stream/chacha20/ref/stream_chacha20_ref.c
@@ -1,6 +1,4 @@
 
-/* $OpenBSD: chacha.c,v 1.1 2013/11/21 00:45:44 djm Exp $ */
-
 /*
  chacha-merged.c version 20080118
  D. J. Bernstein