diff --git a/src/mame/drivers/popeye.cpp b/src/mame/drivers/popeye.cpp
index 84025e84edd..dae6386b45f 100644
--- a/src/mame/drivers/popeye.cpp
+++ b/src/mame/drivers/popeye.cpp
@@ -1,11 +1,10 @@
-// license:???
-// copyright-holders:Marc Lafontaine, Couriersud
+// license:BSD-3-Clause
+// copyright-holders:Nicola Salmoria, Couriersud
+// thanks-to: Marc Lafontaine
 /***************************************************************************
 
 Popeye  (c) 1982 Nintendo
 
-driver by Marc Lafontaine
-
 To enter service mode, reset keeping the service button pressed.
 
 Notes:
diff --git a/src/mame/includes/popeye.h b/src/mame/includes/popeye.h
index 85219661996..704278c2962 100644
--- a/src/mame/includes/popeye.h
+++ b/src/mame/includes/popeye.h
@@ -1,5 +1,6 @@
-// license:???
-// copyright-holders:Marc Lafontaine, Couriersud
+// license:BSD-3-Clause
+// copyright-holders:Nicola Salmoria, Couriersud
+// thanks-to: Marc Lafontaine
 class popeye_state : public driver_device
 {
 public:
diff --git a/src/mame/video/popeye.cpp b/src/mame/video/popeye.cpp
index d057139fbcb..bbb0c6ed705 100644
--- a/src/mame/video/popeye.cpp
+++ b/src/mame/video/popeye.cpp
@@ -1,5 +1,6 @@
-// license:???
-// copyright-holders:Marc Lafontaine, Couriersud
+// license:BSD-3-Clause
+// copyright-holders:Nicola Salmoria, Couriersud
+// thanks-to: Marc Lafontaine
 /***************************************************************************
 
   video.c