diff -pruN 11.2-2/debian/changelog 11.2-2ubuntu1/debian/changelog
--- 11.2-2/debian/changelog	2021-08-25 10:40:16.000000000 +0000
+++ 11.2-2ubuntu1/debian/changelog	2022-03-17 17:14:25.000000000 +0000
@@ -1,3 +1,11 @@
+mit-scheme (11.2-2ubuntu1) jammy; urgency=medium
+
+  * d/p/0001-microcode-Make-definition-for-chacha_core-match-decl.patch:
+    Pull in upstream patch to fix -Werror=array-parameter build error.
+    (LP: #1965163).
+
+ -- Nick Rosbrook <nick.rosbrook@canonical.com>  Thu, 17 Mar 2022 13:14:25 -0400
+
 mit-scheme (11.2-2) unstable; urgency=medium
 
   * remove i386 from architecture list (closes: #982791)
diff -pruN 11.2-2/debian/control 11.2-2ubuntu1/debian/control
--- 11.2-2/debian/control	2021-08-25 10:20:22.000000000 +0000
+++ 11.2-2ubuntu1/debian/control	2022-03-17 17:14:25.000000000 +0000
@@ -1,7 +1,8 @@
 Source: mit-scheme
 Section: lisp
 Priority: optional
-Maintainer: Barak A. Pearlmutter <bap@debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Barak A. Pearlmutter <bap@debian.org>
 Build-Depends: debhelper-compat (= 13),
 		mit-scheme (>= 10),
 		libssl-dev, libmhash-dev, libmcrypt-dev,
diff -pruN 11.2-2/debian/patches/0001-microcode-Make-definition-for-chacha_core-match-decl.patch 11.2-2ubuntu1/debian/patches/0001-microcode-Make-definition-for-chacha_core-match-decl.patch
--- 11.2-2/debian/patches/0001-microcode-Make-definition-for-chacha_core-match-decl.patch	1970-01-01 00:00:00.000000000 +0000
+++ 11.2-2ubuntu1/debian/patches/0001-microcode-Make-definition-for-chacha_core-match-decl.patch	2022-03-17 17:14:25.000000000 +0000
@@ -0,0 +1,29 @@
+Description: Make definition for chacha_core match declaration.
+ Makes no semantic difference but some compilers object now.
+Origin: upstream, https://git.savannah.gnu.org/cgit/mit-scheme.git/commit/?id=837bb3f1ca75f867e115bf3a195de2f78517dce1
+Last-Update: 2022-03-16
+---
+From 837bb3f1ca75f867e115bf3a195de2f78517dce1 Mon Sep 17 00:00:00 2001
+From: Taylor R Campbell <campbell+mit-scheme@mumble.net>
+Date: Fri, 7 May 2021 16:02:08 +0000
+Subject: [PATCH] microcode: Make definition for chacha_core match declaration.
+
+Makes no semantic difference but some compilers object now.
+---
+ src/microcode/chacha.i | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+--- a/src/microcode/chacha.i
++++ b/src/microcode/chacha.i
+@@ -77,8 +77,10 @@
+ static const uint8_t chacha_core_constant32[16] = "expand 32-byte k";
+ 
+ void
+-chacha_core(uint8_t *out, const uint8_t *in, const uint8_t *k,
+-    const uint8_t *c)
++chacha_core(uint8_t out[chacha_core_OUTPUTBYTES],
++    const uint8_t in[chacha_core_INPUTBYTES],
++    const uint8_t k[chacha_core_KEYBYTES],
++    const uint8_t c[chacha_core_CONSTBYTES])
+ {
+ 	uint32_t x0,x1,x2,x3,x4,x5,x6,x7,x8,x9,x10,x11,x12,x13,x14,x15;
+ 	uint32_t j0,j1,j2,j3,j4,j5,j6,j7,j8,j9,j10,j11,j12,j13,j14,j15;
diff -pruN 11.2-2/debian/patches/series 11.2-2ubuntu1/debian/patches/series
--- 11.2-2/debian/patches/series	2021-08-25 10:09:35.000000000 +0000
+++ 11.2-2ubuntu1/debian/patches/series	2022-03-17 17:14:25.000000000 +0000
@@ -4,3 +4,4 @@
 0004-makeinfo-5-fix.patch
 0005-man-page.patch
 0007-verbose-texi2dvi.patch
+0001-microcode-Make-definition-for-chacha_core-match-decl.patch