diff --git a/src/mess/drivers/hp9k.c b/src/mess/drivers/hp9k.c
index 614575d5161..bfdf79bc122 100644
--- a/src/mess/drivers/hp9k.c
+++ b/src/mess/drivers/hp9k.c
@@ -1,5 +1,5 @@
-// license:???
-// copyright-holders:fulivi
+// license:BSD-3-Clause
+// copyright-holders:F. Ulivi
 
 /***************************************************************************
 
diff --git a/src/mess/drivers/imds2.c b/src/mess/drivers/imds2.c
index 4e3a705983b..4db7ffd7555 100644
--- a/src/mess/drivers/imds2.c
+++ b/src/mess/drivers/imds2.c
@@ -1,5 +1,5 @@
-// license:???
-// copyright-holders:fulivi
+// license:BSD-3-Clause
+// copyright-holders:F. Ulivi
 //
 // ***************************************
 // Driver for Intel Intellec MDS series-II
diff --git a/src/mess/includes/imds2.h b/src/mess/includes/imds2.h
index 4a5d966fac6..2b7b20de074 100644
--- a/src/mess/includes/imds2.h
+++ b/src/mess/includes/imds2.h
@@ -1,5 +1,5 @@
-// license:???
-// copyright-holders:fulivi
+// license:BSD-3-Clause
+// copyright-holders:F. Ulivi
 // Driver for Intel Intellec MDS series-II
 
 #ifndef _IMDS2_H_