diff --git a/doc/dev/HOW-ADB-WORKS.txt b/doc/dev/HOW-ADB-WORKS.txt
index 05d14a816f..5f10ad79de 100644
--- a/doc/dev/HOW-ADB-WORKS.txt
+++ b/doc/dev/HOW-ADB-WORKS.txt
@@ -1,7 +1,3 @@
-Copyright (C) Internet Systems Consortium, Inc. ("ISC")
-
-See COPYRIGHT in the source root or http://isc.org/copyright.html for terms.
-
 Recently, several groups have expressed concern over potential
 denial of service attacks within BIND 9, specifically within the ADB
 (address database.)  This document hopes to provide a more clear
diff --git a/util/copyrights b/util/copyrights
index dbad7409b0..d469c5e706 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -1477,7 +1477,6 @@
 ./doc/arm/notes.conf				X	2015,2018,2019
 ./doc/arm/notes.html				X	2014,2015,2016,2017,2018,2019
 ./doc/arm/notes.pdf				X	2014,2015,2016,2017,2018,2019
-./doc/arm/notes.txt				X	2018,2019
 ./doc/arm/notes.xml				SGML	2014,2015,2016,2017,2018,2019
 ./doc/arm/noteversion.xml.in			SGML	2015,2016,2018,2019
 ./doc/arm/options.grammar.xml			SGML	2018,2019
@@ -1513,7 +1512,6 @@
 ./doc/design/windows-nt				TXT.BRIEF	1999,2000,2001,2004,2016,2018,2019
 ./doc/design/zone				TXT.BRIEF	1999,2000,2001,2004,2016,2018,2019
 ./doc/dev/DBC					TXT.BRIEF	1999,2000,2001,2004,2016,2018,2019
-./doc/dev/HOW-ADB-WORKS.txt			TXT.BRIEF	2003,2004,2016,2018,2019
 ./doc/dev/autoconf				TXT.BRIEF	2001,2002,2004,2016,2018,2019
 ./doc/dev/coding.html				HTML	1999,2000,2001,2002,2004,2007,2016,2018,2019
 ./doc/dev/cvs-usage				TXT.BRIEF	2000,2001,2004,2016,2018,2019
@@ -2581,6 +2579,4 @@
 ./win32utils/Configure				PERL	2013,2014,2015,2016,2017,2018,2019
 ./win32utils/GeoIP.diff				X	2013,2018,2019
 ./win32utils/bind9.sln.in			X	2013,2014,2015,2016,2017,2018,2019
-./win32utils/build.txt				TXT.BRIEF	2013,2014,2015,2016,2017,2018,2019
 ./win32utils/index.html				HTML	2006,2007,2008,2012,2013,2014,2015,2016,2018,2019
-./win32utils/readme1st.txt			TXT.BRIEF	2001,2003,2004,2005,2007,2008,2009,2012,2013,2014,2015,2016,2018,2019
diff --git a/util/merge_copyrights b/util/merge_copyrights
index 62d5d14cff..5e5e35b9af 100644
--- a/util/merge_copyrights
+++ b/util/merge_copyrights
@@ -57,7 +57,8 @@ while (<CHANGES>) {
 	       \.conf\.in$ |    # configuration files
 	       \.dir-locals\.el | # emacs local variables
 	       /(dnssafe|openssl)/.*\.[ch]$ |	# imported
-	       doc/(draft|expired|rfc)/		# imported
+	       doc/(draft|expired|rfc)/ |	# imported
+	       \.txt$		# text files don't really need copyright
 	     %x);
 
     if (!$file_types{$_}) {
diff --git a/win32utils/build.txt b/win32utils/build.txt
index 522f0fafc1..95ddbcc036 100644
--- a/win32utils/build.txt
+++ b/win32utils/build.txt
@@ -1,7 +1,3 @@
-Copyright (C) Internet Systems Consortium, Inc. ("ISC")
-
-See COPYRIGHT in the source root or http://isc.org/copyright.html for terms.
-
        BIND 9.10 for Win32 Source Build Instructions.  17-Apr-2015
 
 Building BIND 9.10 on Windows has the following prerequisites:
diff --git a/win32utils/readme1st.txt b/win32utils/readme1st.txt
index cb336e9587..adc093c9d1 100644
--- a/win32utils/readme1st.txt
+++ b/win32utils/readme1st.txt
@@ -1,7 +1,3 @@
-Copyright (C) Internet Systems Consortium, Inc. ("ISC")
-
-See COPYRIGHT in the source root or http://isc.org/copyright.html for terms.
-
 NOTES ON BIND 9.10 FOR WINDOWS:
 
 BIND 9.10 is known to run on Windows XP, Vista, Windows 7,