diff -Nru lskat-17.12.3/debian/changelog lskat-17.12.3/debian/changelog
--- lskat-17.12.3/debian/changelog	2018-03-16 13:33:19.000000000 +0000
+++ lskat-17.12.3/debian/changelog	2018-04-16 16:01:59.000000000 +0000
@@ -1,3 +1,9 @@
+lskat (4:17.12.3-0ubuntu2) bionic; urgency=medium
+
+  * Add missing l10n Breaks/Replaces for upgrades from Artful
+
+ -- Rik Mills <rikmills@kubuntu.org>  Mon, 16 Apr 2018 17:01:59 +0100
+
 lskat (4:17.12.3-0ubuntu1) bionic; urgency=medium
 
   * New upstream release (17.12.3)
diff -Nru lskat-17.12.3/debian/control lskat-17.12.3/debian/control
--- lskat-17.12.3/debian/control	2018-03-16 13:33:19.000000000 +0000
+++ lskat-17.12.3/debian/control	2018-04-16 16:01:59.000000000 +0000
@@ -40,6 +40,8 @@
 Architecture: any
 Depends: kdegames-card-data-kf5 (>= 4:17.08.3~), ${misc:Depends}, ${shlibs:Depends}
 Recommends: khelpcenter
+Breaks: ${kde-l10n:all}
+Replaces: ${kde-l10n:all}
 Description: Lieutnant Skat card game
  Lieutnant Skat is a simplified variant of the Skat card game for two players.
  .
diff -Nru lskat-17.12.3/debian/rules lskat-17.12.3/debian/rules
--- lskat-17.12.3/debian/rules	2018-03-16 13:33:19.000000000 +0000
+++ lskat-17.12.3/debian/rules	2018-04-16 16:01:59.000000000 +0000
@@ -1,6 +1,9 @@
 #!/usr/bin/make -f
 
+l10npkgs_firstversion_ok := 4:17.08.3~
+
 include /usr/share/pkg-kde-tools/qt-kde-team/2/debian-qt-kde.mk
+include /usr/share/pkg-kde-tools/qt-kde-team/2/l10n-packages.mk
 
 override_dh_auto_configure:
 	$(overridden_command) -- -DBIN_INSTALL_DIR=/usr/games