diff -Nru haskell-config-ini-0.2.4.0/debian/changelog haskell-config-ini-0.2.4.0/debian/changelog
--- haskell-config-ini-0.2.4.0/debian/changelog	2019-08-27 22:01:59.000000000 +0000
+++ haskell-config-ini-0.2.4.0/debian/changelog	2019-11-17 08:06:02.000000000 +0000
@@ -1,3 +1,9 @@
+haskell-config-ini (0.2.4.0-2+rpi1) bullseye-staging; urgency=medium
+
+  * Force C.UTF-8 locale.
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Sun, 17 Nov 2019 08:06:02 +0000
+
 haskell-config-ini (0.2.4.0-2) unstable; urgency=medium
 
   * Enable testsuite.
diff -Nru haskell-config-ini-0.2.4.0/debian/rules haskell-config-ini-0.2.4.0/debian/rules
--- haskell-config-ini-0.2.4.0/debian/rules	2019-08-27 22:01:57.000000000 +0000
+++ haskell-config-ini-0.2.4.0/debian/rules	2019-11-17 08:05:49.000000000 +0000
@@ -1,5 +1,7 @@
 #!/usr/bin/make -f
 
+export LC_ALL=C.UTF-8
+
 DEB_ENABLE_TESTS = yes
 DEB_SETUP_BIN_NAME = debian/hlibrary.setup
 DEB_CABAL_PACKAGE = config-ini