diff --git a/doc/Changelog b/doc/Changelog
index 9ee1cdb57..6036d738a 100644
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -3,6 +3,7 @@
 	  at verbosity 4, to enable diagnosis why no queries to 127.0.0.1.
 	- added feature to print configure date, target and options with -h.
 	- added feature to print event backend system details with -h.
+	- wdiff is not actually required by make test, updated requirements.
 
 1 July 2010: Wouter
 	- Fix RFC4035 compliance with 2.2 statement that the DNSKEY at apex
diff --git a/doc/README.tests b/doc/README.tests
index 1279d755b..399955897 100644
--- a/doc/README.tests
+++ b/doc/README.tests
@@ -6,10 +6,9 @@ To make and run the tests. The results are summarized at the end.
 
 You need to have the following programs installed and in your PATH.
 * dig - from the bind-tools package. Used to send DNS queries.
-* wdiff - used for word-by-word comparisons.
 * splint (optional) - for lint test
 * doxygen (optional) - for doc completeness test
-* ldns-testns (optional) - from ldns examples. Used as DNS auth server.
+* ldns-testns - from ldns examples. Used as DNS auth server.
 * xxd and nc (optional) - for (malformed) packet transmission.
 The optional programs are detected and can be omitted.
 
diff --git a/testcode/do-tests.sh b/testcode/do-tests.sh
index 2cfd8ea0c..aceb5efc3 100755
--- a/testcode/do-tests.sh
+++ b/testcode/do-tests.sh
@@ -10,9 +10,8 @@ NEED_WHOAMI='07-confroot.tpkg'
 NEED_IPV6='fwd_ancil.tpkg fwd_tcp_tc6.tpkg stub_udp6.tpkg'
 NEED_NOMINGW='tcp_sigpipe.tpkg 07-confroot.tpkg 08-host-lib.tpkg fwd_ancil.tpkg'
 
-# test if dig, wdiff and ldns-testns are available.
+# test if dig and ldns-testns are available.
 if test ! -x "`which dig 2>&1`"; then echo No 'dig' in path; exit 1; fi
-if test ! -x "`which wdiff 2>&1`"; then echo No 'wdiff' in path; exit 1; fi
 if test ! -x "`which ldns-testns 2>&1`"; then echo No 'ldns-testns' in path; exit 1; fi
 
 # test for ipv6, uses streamptcp peculiarity.