diff --git a/mingw-w64-docbook-sgml/PKGBUILD b/mingw-w64-docbook-sgml/PKGBUILD
index 8fbb776f8d..df6577cfd4 100644
--- a/mingw-w64-docbook-sgml/PKGBUILD
+++ b/mingw-w64-docbook-sgml/PKGBUILD
@@ -7,7 +7,7 @@ pkgver=4.5
 pkgrel=2
 pkgdesc='Document type definitions for verification of SGML data files against the DocBook rule set. (mingw-w64)'
 arch=('any')
-mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64')
+mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clangarm64')
 url='https://www.docbook.org/sgml/'
 license=('MIT')
 depends=("${MINGW_PACKAGE_PREFIX}-sgml-common")
diff --git a/mingw-w64-docbook-sgml/docbook-sgml-CLANGARM64.install b/mingw-w64-docbook-sgml/docbook-sgml-CLANGARM64.install
new file mode 100644
index 0000000000..b554badfd5
--- /dev/null
+++ b/mingw-w64-docbook-sgml/docbook-sgml-CLANGARM64.install
@@ -0,0 +1,58 @@
+MINGW_INSTALL=clangarm64
+
+# arg 1:  the new package version
+pre_install() {
+	/bin/true
+}
+
+# arg 1:  the new package version
+post_install() {
+	add_catalog "${1%-*}"
+}
+
+# arg 1:  the new package version
+# arg 2:  the old package version
+pre_upgrade() {
+	remove_catalog "${2%-*}"
+}
+
+# arg 1:  the new package version
+# arg 2:  the old package version
+post_upgrade() {
+	add_catalog "${1%-*}"
+}
+
+# arg 1:  the old package version
+pre_remove() {
+	remove_catalog "${1%-*}"
+}
+
+# arg 1:  the old package version
+post_remove() {
+	/bin/true
+}
+
+
+add_catalog() {
+	/${MINGW_INSTALL}/bin/install-catalog --add /${MINGW_INSTALL}/etc/sgml/sgml-docbook-dtd-$1.cat \
+		/${MINGW_INSTALL}/share/sgml/docbook-sgml-$1/catalog > /dev/null 2>&1
+
+	/${MINGW_INSTALL}/bin/install-catalog --add /${MINGW_INSTALL}//etc/sgml/sgml-docbook-dtd-$1.cat \
+		/${MINGW_INSTALL}/etc/sgml/sgml-docbook.cat > /dev/null 2>&1
+}
+
+remove_catalog() {
+	/${MINGW_INSTALL}/bin/install-catalog --remove /${MINGW_INSTALL}//etc/sgml/sgml-docbook-dtd-$1.cat \
+		/${MINGW_INSTALL}/share/sgml/docbook-sgml-$1/catalog > /dev/null 2>&1
+
+	/${MINGW_INSTALL}/bin/install-catalog --remove /${MINGW_INSTALL}//etc/sgml/sgml-docbook-dtd-$1.cat \
+		/${MINGW_INSTALL}/etc/sgml/sgml-docbook.cat > /dev/null 2>&1
+}
+
+
+op=$1
+shift
+$op "$@"
+
+# vim:set syntax=sh ts=4 sw=4 noet:
+