diff --git a/ndn-cpp/c/encoding/BinaryXMLDecoder.c b/ndn-cpp/c/encoding/BinaryXMLDecoder.c
index bbf5e55..60040ae 100644
--- a/ndn-cpp/c/encoding/BinaryXMLDecoder.c
+++ b/ndn-cpp/c/encoding/BinaryXMLDecoder.c
@@ -1,5 +1,6 @@
 /**
  * @author: Jeff Thompson
+ * Derived from BinaryXMLDecoder.js by Meki Cheraoui.
  * See COPYING for copyright and distribution information.
  */
 
diff --git a/ndn-cpp/c/encoding/BinaryXMLEncoder.c b/ndn-cpp/c/encoding/BinaryXMLEncoder.c
index a618abf..ad7a5d1 100644
--- a/ndn-cpp/c/encoding/BinaryXMLEncoder.c
+++ b/ndn-cpp/c/encoding/BinaryXMLEncoder.c
@@ -1,5 +1,6 @@
 /**
  * @author: Jeff Thompson
+ * Derived from BinaryXMLEncoder.js by Meki Cheraoui.
  * See COPYING for copyright and distribution information.
  */