diff --git a/sys/compat/linprocfs/linprocfs.c b/sys/compat/linprocfs/linprocfs.c
index 5d780830282a..f2479871068a 100644
--- a/sys/compat/linprocfs/linprocfs.c
+++ b/sys/compat/linprocfs/linprocfs.c
@@ -1,4 +1,6 @@
 /*
+ * Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
+ * Copyright (c) 1999 Pierre Beyssac
  * Copyright (c) 1993 Jan-Simon Pendry
  * Copyright (c) 1993
  *	The Regents of the University of California.  All rights reserved.
diff --git a/sys/compat/linprocfs/linprocfs.h b/sys/compat/linprocfs/linprocfs.h
index 14ef1a021070..3ab9a28ec285 100644
--- a/sys/compat/linprocfs/linprocfs.h
+++ b/sys/compat/linprocfs/linprocfs.h
@@ -1,4 +1,6 @@
 /*
+ * Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
+ * Copyright (c) 1999 Pierre Beyssac
  * Copyright (c) 1993 Jan-Simon Pendry
  * Copyright (c) 1993
  *	The Regents of the University of California.  All rights reserved.
diff --git a/sys/compat/linprocfs/linprocfs_misc.c b/sys/compat/linprocfs/linprocfs_misc.c
index 5d780830282a..f2479871068a 100644
--- a/sys/compat/linprocfs/linprocfs_misc.c
+++ b/sys/compat/linprocfs/linprocfs_misc.c
@@ -1,4 +1,6 @@
 /*
+ * Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
+ * Copyright (c) 1999 Pierre Beyssac
  * Copyright (c) 1993 Jan-Simon Pendry
  * Copyright (c) 1993
  *	The Regents of the University of California.  All rights reserved.
diff --git a/sys/compat/linprocfs/linprocfs_subr.c b/sys/compat/linprocfs/linprocfs_subr.c
index 87d6134b2c70..8e724084c46a 100644
--- a/sys/compat/linprocfs/linprocfs_subr.c
+++ b/sys/compat/linprocfs/linprocfs_subr.c
@@ -1,4 +1,6 @@
 /*
+ * Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
+ * Copyright (c) 1999 Pierre Beyssac
  * Copyright (c) 1993 Jan-Simon Pendry
  * Copyright (c) 1993
  *	The Regents of the University of California.  All rights reserved.
diff --git a/sys/compat/linprocfs/linprocfs_vfsops.c b/sys/compat/linprocfs/linprocfs_vfsops.c
index c8d6f624020a..6ebd4753d4f1 100644
--- a/sys/compat/linprocfs/linprocfs_vfsops.c
+++ b/sys/compat/linprocfs/linprocfs_vfsops.c
@@ -1,4 +1,6 @@
 /*
+ * Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
+ * Copyright (c) 1999 Pierre Beyssac
  * Copyright (c) 1993 Jan-Simon Pendry
  * Copyright (c) 1993
  *	The Regents of the University of California.  All rights reserved.
diff --git a/sys/compat/linprocfs/linprocfs_vnops.c b/sys/compat/linprocfs/linprocfs_vnops.c
index a1f5db1ac1d2..e8ae910e48ea 100644
--- a/sys/compat/linprocfs/linprocfs_vnops.c
+++ b/sys/compat/linprocfs/linprocfs_vnops.c
@@ -1,4 +1,6 @@
 /*
+ * Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
+ * Copyright (c) 1999 Pierre Beyssac
  * Copyright (c) 1993, 1995 Jan-Simon Pendry
  * Copyright (c) 1993, 1995
  *	The Regents of the University of California.  All rights reserved.
diff --git a/sys/i386/linux/linprocfs/linprocfs.h b/sys/i386/linux/linprocfs/linprocfs.h
index 14ef1a021070..3ab9a28ec285 100644
--- a/sys/i386/linux/linprocfs/linprocfs.h
+++ b/sys/i386/linux/linprocfs/linprocfs.h
@@ -1,4 +1,6 @@
 /*
+ * Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
+ * Copyright (c) 1999 Pierre Beyssac
  * Copyright (c) 1993 Jan-Simon Pendry
  * Copyright (c) 1993
  *	The Regents of the University of California.  All rights reserved.
diff --git a/sys/i386/linux/linprocfs/linprocfs_misc.c b/sys/i386/linux/linprocfs/linprocfs_misc.c
index 5d780830282a..f2479871068a 100644
--- a/sys/i386/linux/linprocfs/linprocfs_misc.c
+++ b/sys/i386/linux/linprocfs/linprocfs_misc.c
@@ -1,4 +1,6 @@
 /*
+ * Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
+ * Copyright (c) 1999 Pierre Beyssac
  * Copyright (c) 1993 Jan-Simon Pendry
  * Copyright (c) 1993
  *	The Regents of the University of California.  All rights reserved.
diff --git a/sys/i386/linux/linprocfs/linprocfs_subr.c b/sys/i386/linux/linprocfs/linprocfs_subr.c
index 87d6134b2c70..8e724084c46a 100644
--- a/sys/i386/linux/linprocfs/linprocfs_subr.c
+++ b/sys/i386/linux/linprocfs/linprocfs_subr.c
@@ -1,4 +1,6 @@
 /*
+ * Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
+ * Copyright (c) 1999 Pierre Beyssac
  * Copyright (c) 1993 Jan-Simon Pendry
  * Copyright (c) 1993
  *	The Regents of the University of California.  All rights reserved.
diff --git a/sys/i386/linux/linprocfs/linprocfs_vfsops.c b/sys/i386/linux/linprocfs/linprocfs_vfsops.c
index c8d6f624020a..6ebd4753d4f1 100644
--- a/sys/i386/linux/linprocfs/linprocfs_vfsops.c
+++ b/sys/i386/linux/linprocfs/linprocfs_vfsops.c
@@ -1,4 +1,6 @@
 /*
+ * Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
+ * Copyright (c) 1999 Pierre Beyssac
  * Copyright (c) 1993 Jan-Simon Pendry
  * Copyright (c) 1993
  *	The Regents of the University of California.  All rights reserved.
diff --git a/sys/i386/linux/linprocfs/linprocfs_vnops.c b/sys/i386/linux/linprocfs/linprocfs_vnops.c
index a1f5db1ac1d2..e8ae910e48ea 100644
--- a/sys/i386/linux/linprocfs/linprocfs_vnops.c
+++ b/sys/i386/linux/linprocfs/linprocfs_vnops.c
@@ -1,4 +1,6 @@
 /*
+ * Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
+ * Copyright (c) 1999 Pierre Beyssac
  * Copyright (c) 1993, 1995 Jan-Simon Pendry
  * Copyright (c) 1993, 1995
  *	The Regents of the University of California.  All rights reserved.