diff --git a/src/lib/formats/acorn_dsk.cpp b/src/lib/formats/acorn_dsk.cpp
index d0f0bdb93aa..c597ee74995 100644
--- a/src/lib/formats/acorn_dsk.cpp
+++ b/src/lib/formats/acorn_dsk.cpp
@@ -1,4 +1,4 @@
-// license:GPL-2.0+
+// license:BSD-3-Clause
 // copyright-holders:Dirk Best, Nigel Barnes
 /***************************************************************************
 
diff --git a/src/lib/formats/acorn_dsk.h b/src/lib/formats/acorn_dsk.h
index 352ae3625d3..043c2859232 100644
--- a/src/lib/formats/acorn_dsk.h
+++ b/src/lib/formats/acorn_dsk.h
@@ -1,4 +1,4 @@
-// license:GPL-2.0+
+// license:BSD-3-Clause
 // copyright-holders:Dirk Best, Nigel Barnes
 /***************************************************************************
 
diff --git a/src/lib/formats/afs_dsk.cpp b/src/lib/formats/afs_dsk.cpp
index c6a24067fa7..ee89e26a87e 100644
--- a/src/lib/formats/afs_dsk.cpp
+++ b/src/lib/formats/afs_dsk.cpp
@@ -1,4 +1,4 @@
-// license:GPL-2.0+
+// license:BSD-3-Clause
 // copyright-holders:Nigel Barnes
 /***************************************************************************
 
diff --git a/src/lib/formats/afs_dsk.h b/src/lib/formats/afs_dsk.h
index f1859615ade..e523d834031 100644
--- a/src/lib/formats/afs_dsk.h
+++ b/src/lib/formats/afs_dsk.h
@@ -1,4 +1,4 @@
-// license:GPL-2.0+
+// license:BSD-3-Clause
 // copyright-holders:Nigel Barnes
 /***************************************************************************
 
@@ -12,8 +12,6 @@
 
 #pragma once
 
-#pragma once
-
 #include "wd177x_dsk.h"
 
 
diff --git a/src/lib/formats/ti99_dsk.cpp b/src/lib/formats/ti99_dsk.cpp
index 9ab4f5fb4b3..d8f12ea960d 100644
--- a/src/lib/formats/ti99_dsk.cpp
+++ b/src/lib/formats/ti99_dsk.cpp
@@ -1,4 +1,4 @@
-// license:BSD-3-Clause
+// license:LGPL-2.1+
 // copyright-holders:Michael Zapf
 /*********************************************************************