diff --git a/util/copyrights b/util/copyrights
index 6f183fc049..fa913f7222 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -1886,7 +1886,7 @@
 ./lib/isc/api					X	1999,2000,2001,2006,2008,2009
 ./lib/isc/assertions.c				C	1997,1998,1999,2000,2001,2004,2005,2007,2008
 ./lib/isc/base32.c				C	2008,2009
-./lib/isc/base64.c				C	1998,1999,2000,2001,2003,2004,2005,2007
+./lib/isc/base64.c				C	1998,1999,2000,2001,2003,2004,2005,2007,2009
 ./lib/isc/bitstring.c				C	1999,2000,2001,2004,2005,2007
 ./lib/isc/buffer.c				C	1998,1999,2000,2001,2002,2004,2005,2006,2007,2008
 ./lib/isc/bufferlist.c				C	1999,2000,2001,2004,2005,2007