diff -Nru kalgebra-17.08.3/debian/changelog kalgebra-17.08.3/debian/changelog
--- kalgebra-17.08.3/debian/changelog	2017-12-10 15:08:19.000000000 +0000
+++ kalgebra-17.08.3/debian/changelog	2017-12-16 12:52:33.000000000 +0000
@@ -1,3 +1,10 @@
+kalgebra (4:17.08.3-2+rpi1) buster-staging; urgency=medium
+
+  * Make armhf a non-webengine architecture.
+  * Fix clean target.
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Sat, 16 Dec 2017 12:52:33 +0000
+
 kalgebra (4:17.08.3-2) unstable; urgency=medium
 
   * Team upload.
diff -Nru kalgebra-17.08.3/debian/control kalgebra-17.08.3/debian/control
--- kalgebra-17.08.3/debian/control	2017-12-08 20:26:37.000000000 +0000
+++ kalgebra-17.08.3/debian/control	2017-12-16 12:52:33.000000000 +0000
@@ -22,14 +22,14 @@
                pkg-kde-tools (>> 0.15.15),
                qtbase5-dev (>= 5.4),
                qtdeclarative5-dev (>= 5.4),
-               qtwebengine5-dev [amd64 arm64 armhf i386 mipsel],
+               qtwebengine5-dev [amd64 arm64 i386 mipsel],
 Standards-Version: 4.1.2
 Homepage: http://edu.kde.org/
 Vcs-Browser: https://anonscm.debian.org/git/pkg-kde/applications/kalgebra.git
 Vcs-Git: https://anonscm.debian.org/git/pkg-kde/applications/kalgebra.git
 
 Package: kalgebra
-Architecture: amd64 arm64 armhf i386 mipsel
+Architecture: amd64 arm64 i386 mipsel
 Section: math
 Depends: kalgebra-common (= ${binary:Version}),
          ${misc:Depends},
@@ -43,7 +43,7 @@
  This package is part of the KDE education module.
 
 Package: kalgebra-common
-Architecture: amd64 arm64 armhf i386 mipsel
+Architecture: amd64 arm64 i386 mipsel
 Section: math
 Breaks: kalgebra (<< 4:4.7.2), ${kde-l10n:all}
 Replaces: kalgebra (<< 4:4.7.2), ${kde-l10n:all}
@@ -61,7 +61,7 @@
 Package: kalgebramobile
 Architecture: any
 Section: math
-Depends: kalgebra-common (= ${binary:Version}) [amd64 arm64 armhf i386 mipsel],
+Depends: kalgebra-common (= ${binary:Version}) [amd64 arm64 i386 mipsel],
          plasma-framework,
          qml-module-org-kde-kirigami2,
          ${misc:Depends},
diff -Nru kalgebra-17.08.3/debian/rules kalgebra-17.08.3/debian/rules
--- kalgebra-17.08.3/debian/rules	2017-12-10 15:08:19.000000000 +0000
+++ kalgebra-17.08.3/debian/rules	2017-12-16 12:52:33.000000000 +0000
@@ -3,7 +3,7 @@
 include /usr/share/dpkg/architecture.mk
 
 l10npkgs_firstversion_ok := 4:16.04.3-8~
-webengine_archs := amd64 arm64 armhf i386 mipsel
+webengine_archs := amd64 arm64 i386 mipsel
 
 include /usr/share/pkg-kde-tools/qt-kde-team/3/debian-qt-kde.mk
 include /usr/share/pkg-kde-tools/qt-kde-team/2/l10n-packages.mk
@@ -15,3 +15,7 @@
 
 override_dh_strip:
 	$(overridden_command) --dbgsym-migration='kalgebra-dbg (<= 4:15.12.1-1~~)'
+
+override_dh_auto_clean:
+	dh_auto_clean
+	rm -rf debian/kalgebra