diff -pruN 5.2.4-1/debian/changelog 5.2.4-1ubuntu1/debian/changelog
--- 5.2.4-1/debian/changelog	2019-01-28 01:09:34.000000000 +0000
+++ 5.2.4-1ubuntu1/debian/changelog	2020-04-20 21:43:24.000000000 +0000
@@ -1,3 +1,10 @@
+xz-utils (5.2.4-1ubuntu1) focal; urgency=medium
+
+  * Use the generic % rule in debian/rules, otherwise it FTBFS with 
+    debhelper 12.5. Closes: #945961. LP: #1870088.
+
+ -- Tiago Stürmer Daitx <tiago.daitx@ubuntu.com>  Mon, 20 Apr 2020 21:43:24 +0000
+
 xz-utils (5.2.4-1) unstable; urgency=low
 
   * New upstream release.  Closes: #851615.
diff -pruN 5.2.4-1/debian/control 5.2.4-1ubuntu1/debian/control
--- 5.2.4-1/debian/control	2019-01-28 01:06:10.000000000 +0000
+++ 5.2.4-1ubuntu1/debian/control	2020-04-20 21:43:24.000000000 +0000
@@ -1,7 +1,8 @@
 Source: xz-utils
 Section: utils
 Priority: optional
-Maintainer: Jonathan Nieder <jrnieder@gmail.com>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Jonathan Nieder <jrnieder@gmail.com>
 Uploaders: Mohammed Adnène Trojette <adn+deb@diwi.org>
 Build-Depends: debhelper (>= 8.9.0), dpkg-dev (>= 1.16.2),
  autoconf (>= 2.64~), automake, libtool (>= 2.2),
diff -pruN 5.2.4-1/debian/rules 5.2.4-1ubuntu1/debian/rules
--- 5.2.4-1/debian/rules	2019-01-28 01:07:43.000000000 +0000
+++ 5.2.4-1ubuntu1/debian/rules	2020-04-20 21:43:21.000000000 +0000
@@ -1,7 +1,7 @@
 #!/usr/bin/make -f
 
-build clean install binary-arch binary-indep binary:
-	+dh $@ --parallel $(opt_no_act)
+%:
+	dh $@ --parallel $(opt_no_act)
 
 # Runs tests, too, if and only if nocheck is unset (see below).
 build-arch:: build-plain build-static build-small