diff -Nru octave-io-2.6.4/debian/changelog octave-io-2.6.4/debian/changelog
--- octave-io-2.6.4/debian/changelog	2022-01-04 14:02:12.000000000 +0000
+++ octave-io-2.6.4/debian/changelog	2022-01-25 21:07:51.000000000 +0000
@@ -1,3 +1,9 @@
+octave-io (2.6.4-1+rpi1) bookworm-staging; urgency=medium
+
+  * Disable testsuite.
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Tue, 25 Jan 2022 21:07:51 +0000
+
 octave-io (2.6.4-1) unstable; urgency=medium
 
   [ Debian Janitor ]
diff -Nru octave-io-2.6.4/debian/rules octave-io-2.6.4/debian/rules
--- octave-io-2.6.4/debian/rules	2021-08-08 21:00:00.000000000 +0000
+++ octave-io-2.6.4/debian/rules	2022-01-25 21:07:31.000000000 +0000
@@ -3,3 +3,6 @@
 
 %:
 	dh $@ --buildsystem=octave --with=octave
+
+override_dh_auto_test:
+	echo testsuite disabled