diff --git a/src/mame/video/ygv608.c b/src/mame/video/ygv608.c
index 72471bbe5e2..3f5f7141bec 100644
--- a/src/mame/video/ygv608.c
+++ b/src/mame/video/ygv608.c
@@ -1,5 +1,5 @@
 // license:???
-// copyright-holders:???
+// copyright-holders:Mark McDougall
 
 /*
  *    Yamaha YGV608 - PVDC2 Pattern mode Video Display Controller 2
diff --git a/src/mame/video/ygv608.h b/src/mame/video/ygv608.h
index 2ec1714a3d3..f46e4b81aa2 100644
--- a/src/mame/video/ygv608.h
+++ b/src/mame/video/ygv608.h
@@ -1,5 +1,5 @@
 // license:???
-// copyright-holders:???
+// copyright-holders:Mark McDougall
 #ifndef __YGV608_H__
 #define __YGV608_H__