diff --git a/include/hamlib/amp_state.h b/include/hamlib/amp_state.h
index 4f4716a5e..8f86ecb10 100644
--- a/include/hamlib/amp_state.h
+++ b/include/hamlib/amp_state.h
@@ -1,6 +1,7 @@
 /*
  *  Hamlib Interface - Amplifier state structure
- *  Copyright (c) 2025 by The Hamlib Group
+ *  Copyright (c) 2000-2025 by the Hamlib developers
+ *  Copyright (c) 2025 by George Baltz
  *
  *
  *   This library is free software; you can redistribute it and/or
diff --git a/include/hamlib/port.h b/include/hamlib/port.h
index 95de6251b..cec85912e 100644
--- a/include/hamlib/port.h
+++ b/include/hamlib/port.h
@@ -1,6 +1,7 @@
 /*
  *  Hamlib Interface - Port structure
- *  Copyright (c) 2025 by The Hamlib Group
+ *  Copyright (c) 2000-2025 the Hamlib developers
+ *  Copyright (c) 2025 by George Baltz
  *
  *
  *   This library is free software; you can redistribute it and/or
diff --git a/include/hamlib/rig_state.h b/include/hamlib/rig_state.h
index a148d4d66..604846ddf 100644
--- a/include/hamlib/rig_state.h
+++ b/include/hamlib/rig_state.h
@@ -1,6 +1,7 @@
 /*
  *  Hamlib Interface - Rig state structure
- *  Copyright (c) 2025 by The Hamlib Group
+ *  Copyright (c) 2000-2025 by the Hamlib developers
+ *  Copyright (c) 2025 by George Baltz
  *
  *
  *   This library is free software; you can redistribute it and/or
diff --git a/include/hamlib/rot_state.h b/include/hamlib/rot_state.h
index 39766f035..949317a9b 100644
--- a/include/hamlib/rot_state.h
+++ b/include/hamlib/rot_state.h
@@ -1,6 +1,7 @@
 /*
  *  Hamlib Interface - Rotator state structure
- *  Copyright (c) 2025 by The Hamlib Group
+ *  Copyright (c) 2000-2025 by the Hamlib developers
+ *  Copyright (c) 2025 by George Baltz
  *
  *
  *   This library is free software; you can redistribute it and/or