diff --git a/acconfig.h b/acconfig.h
deleted file mode 100644
index 7c8669f39c..0000000000
--- a/acconfig.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-/*! \file */
-
-/***
- *** This file is not to be included by any public header files, because
- *** it does not get installed.
- ***/
-@TOP@
diff --git a/config.h.in b/config.h.in
index 0891a2e80c..088bd4d4b0 100644
--- a/config.h.in
+++ b/config.h.in
@@ -1,21 +1,4 @@
 /* config.h.in.  Generated from configure.in by autoheader.  */
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-/*! \file */
-
-/***
- *** This file is not to be included by any public header files, because
- *** it does not get installed.
- ***/
 
 /* Define if building universal (internal helper macro) */
 #undef AC_APPLE_UNIVERSAL_BUILD
diff --git a/util/copyrights b/util/copyrights
index 9facfc4b60..a2fd57f224 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -10,7 +10,6 @@
 ./OPTIONS					X	2017,2018
 ./PLATFORMS					X	2018
 ./README					X	1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018
-./acconfig.h					C	1999,2000,2001,2002,2003,2004,2005,2007,2008,2012,2014,2016,2018
 ./aclocal.m4					X	1999,2000,2001,2012,2014,2018
 ./autogen.sh					SH	2015,2016,2018
 ./bin/check/check-tool.c			C	2000,2001,2002,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018