diff -Nru haskell-idna-0.3.0/debian/changelog haskell-idna-0.3.0/debian/changelog
--- haskell-idna-0.3.0/debian/changelog	2020-06-04 00:26:42.000000000 +0000
+++ haskell-idna-0.3.0/debian/changelog	2022-04-30 20:56:42.000000000 +0000
@@ -1,3 +1,9 @@
+haskell-idna (0.3.0-11+rpi1) bookworm-staging; urgency=medium
+
+  * Set LC_ALL=C.UTF-8 for all targets.
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Sat, 30 Apr 2022 20:56:42 +0000
+
 haskell-idna (0.3.0-11) unstable; urgency=medium
 
   * Sourceful upload for GHC 8.8.
diff -Nru haskell-idna-0.3.0/debian/rules haskell-idna-0.3.0/debian/rules
--- haskell-idna-0.3.0/debian/rules	2020-02-08 01:58:09.000000000 +0000
+++ haskell-idna-0.3.0/debian/rules	2022-04-30 20:56:32.000000000 +0000
@@ -1,5 +1,7 @@
 #!/usr/bin/make -f
 
+export LC_ALL := C.UTF-8
+
 include /usr/share/cdbs/1/rules/debhelper.mk
 include /usr/share/cdbs/1/class/hlibrary.mk