diff --git a/lib/qa_utils/burst_sink_impl.cc b/lib/qa_utils/burst_sink_impl.cc
index 5f1ae64..102c5be 100644
--- a/lib/qa_utils/burst_sink_impl.cc
+++ b/lib/qa_utils/burst_sink_impl.cc
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /* @file
- * @author Roman Khassraf <rkhassraf@gmail.com>
+ * @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com>
  * @section LICENSE
  *
  * Gr-gsm is free software; you can redistribute it and/or modify
diff --git a/lib/qa_utils/burst_sink_impl.h b/lib/qa_utils/burst_sink_impl.h
index 42e1e4a..1035430 100644
--- a/lib/qa_utils/burst_sink_impl.h
+++ b/lib/qa_utils/burst_sink_impl.h
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /* @file
- * @author Roman Khassraf <rkhassraf@gmail.com>
+ * @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com>
  * @section LICENSE
  *
  * Gr-gsm is free software; you can redistribute it and/or modify
diff --git a/lib/qa_utils/burst_source_impl.cc b/lib/qa_utils/burst_source_impl.cc
index 7391872..db3d85a 100644
--- a/lib/qa_utils/burst_source_impl.cc
+++ b/lib/qa_utils/burst_source_impl.cc
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /* @file
- * @author Roman Khassraf <rkhassraf@gmail.com>
+ * @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com>
  * @section LICENSE
  *
  * Gr-gsm is free software; you can redistribute it and/or modify
diff --git a/lib/qa_utils/burst_source_impl.h b/lib/qa_utils/burst_source_impl.h
index 969faf9..cc7d9b4 100644
--- a/lib/qa_utils/burst_source_impl.h
+++ b/lib/qa_utils/burst_source_impl.h
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /* @file
- * @author Roman Khassraf <rkhassraf@gmail.com>
+ * @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com>
  * @section LICENSE
  *
  * Gr-gsm is free software; you can redistribute it and/or modify
diff --git a/lib/qa_utils/message_sink_impl.cc b/lib/qa_utils/message_sink_impl.cc
index 269cada..c16f133 100644
--- a/lib/qa_utils/message_sink_impl.cc
+++ b/lib/qa_utils/message_sink_impl.cc
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /* @file
- * @author Roman Khassraf <rkhassraf@gmail.com>
+ * @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com>
  * @section LICENSE
  *
  * Gr-gsm is free software; you can redistribute it and/or modify
diff --git a/lib/qa_utils/message_sink_impl.h b/lib/qa_utils/message_sink_impl.h
index dd11819..b7458af 100644
--- a/lib/qa_utils/message_sink_impl.h
+++ b/lib/qa_utils/message_sink_impl.h
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /* @file
- * @author Roman Khassraf <rkhassraf@gmail.com>
+ * @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com>
  * @section LICENSE
  *
  * Gr-gsm is free software; you can redistribute it and/or modify
diff --git a/lib/qa_utils/message_source_impl.cc b/lib/qa_utils/message_source_impl.cc
index 2e71ba4..a2f28d1 100644
--- a/lib/qa_utils/message_source_impl.cc
+++ b/lib/qa_utils/message_source_impl.cc
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /* @file
- * @author Roman Khassraf <rkhassraf@gmail.com>
+ * @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com>
  * @section LICENSE
  *
  * Gr-gsm is free software; you can redistribute it and/or modify
diff --git a/lib/qa_utils/message_source_impl.h b/lib/qa_utils/message_source_impl.h
index 9856f78..b5ffdcb 100644
--- a/lib/qa_utils/message_source_impl.h
+++ b/lib/qa_utils/message_source_impl.h
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /* @file
- * @author Roman Khassraf <rkhassraf@gmail.com>
+ * @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com>
  * @section LICENSE
  *
  * Gr-gsm is free software; you can redistribute it and/or modify