diff --git a/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c b/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c
index 1f51bc262e6..ff898475985 100644
--- a/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c
+++ b/cddl/contrib/opensolaris/cmd/zfs/zfs_main.c
@@ -22,6 +22,8 @@
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
+ * Copyright (c) 2011 Pawel Jakub Dawidek <pawel@dawidek.net>.
+ * All rights reserved.
  */
 
 #include <assert.h>
diff --git a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h
index 1f226b51a5b..6b25879ed5f 100644
--- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h
+++ b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h
@@ -22,6 +22,8 @@
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
+ * Copyright (c) 2011 Pawel Jakub Dawidek <pawel@dawidek.net>.
+ * All rights reserved.
  */
 
 #ifndef	_LIBZFS_H
diff --git a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_changelist.c b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_changelist.c
index 46179d6a798..a899965ca0f 100644
--- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_changelist.c
+++ b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_changelist.c
@@ -24,6 +24,9 @@
  * Use is subject to license terms.
  *
  * Portions Copyright 2007 Ramprakash Jelari
+ *
+ * Copyright (c) 2011 Pawel Jakub Dawidek <pawel@dawidek.net>.
+ * All rights reserved.
  */
 
 #include <libintl.h>
diff --git a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c
index 976d7e99096..a65b0793cab 100644
--- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c
+++ b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c
@@ -23,6 +23,8 @@
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
  * Copyright (c) 2011 by Delphix. All rights reserved.
+ * Copyright (c) 2011 Pawel Jakub Dawidek <pawel@dawidek.net>.
+ * All rights reserved.
  */
 
 #include <ctype.h>
diff --git a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_impl.h b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_impl.h
index e52a6495d3d..9cd1ed38c92 100644
--- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_impl.h
+++ b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_impl.h
@@ -21,6 +21,8 @@
 
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011 Pawel Jakub Dawidek <pawel@dawidek.net>.
+ * All rights reserved.
  */
 
 #ifndef	_LIBFS_IMPL_H