diff --git a/PKGBUILD b/PKGBUILD
index 6e96359..54e184e 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -13,7 +13,7 @@ license=('GPL3')
 makedepends=('automoc4' 'cmake' 'kdelibs' 'qt5-base' 'qt5-tools')
 source=("https://github.com/arcan1s/netctl-gui/releases/download/V.${pkgver}/${pkgbase}-${pkgver}-src.tar.xz")
 install="${pkgbase}.install"
-md5sums=('d0a279f99cbb9a33b283def9fe053594')
+md5sums=('d99eba4101fee42ebbfa5735aa706bc9')
 
 
 prepare() {
@@ -26,7 +26,6 @@ build() {
   cd "${srcdir}/build-plasmoid"
   cmake -DCMAKE_INSTALL_PREFIX=/usr \
         -DCMAKE_BUILD_TYPE=Release \
-        -DBUILD_DOCS:BOOL=0 \
         -DBUILD_GUI:BOOL=0 \
         -DBUILD_LIBRARY:BOOL=0 \
         -DBUILD_HELPER:BOOL=0 \
@@ -36,7 +35,6 @@ build() {
   cd "${srcdir}/build-qt4"
   cmake -DCMAKE_INSTALL_PREFIX=/usr \
         -DCMAKE_BUILD_TYPE=Release \
-        -DBUILD_DOCS:BOOL=0 \
         -DBUILD_DATAENGINE:BOOL=0 \
         -DBUILD_PLASMOID:BOOL=0 \
         -DUSE_QT5:BOOL=0 \
@@ -46,7 +44,6 @@ build() {
   cd "${srcdir}/build-qt5"
   cmake -DCMAKE_INSTALL_PREFIX=/usr \
         -DCMAKE_BUILD_TYPE=Release \
-        -DBUILD_DOCS:BOOL=0 \
         -DBUILD_DATAENGINE:BOOL=0 \
         -DBUILD_PLASMOID:BOOL=0 \
         "../${pkgbase}"
@@ -89,6 +86,7 @@ package_netctlgui-helper() {
   depends=('libnetctlgui')
   provides=('netctlgui-helper-qt4')
   conflicts=('netctlgui-helper-qt4')
+  backup=('etc/netctlgui-helper.conf')
 
   cd "${srcdir}/build-qt5/helper"
   make DESTDIR="${pkgdir}" install
@@ -128,6 +126,7 @@ package_netctlgui-helper-qt4() {
   depends=('libnetctlgui-qt4')
   provides=('netctlgui-helper')
   conflicts=('netctlgui-helper')
+  backup=('etc/netctlgui-helper.conf')
 
   cd "${srcdir}/build-qt4/helper"
   make DESTDIR="${pkgdir}" install
diff --git a/sources/CMakeLists.txt b/sources/CMakeLists.txt
index 87abcc3..a046f48 100644
--- a/sources/CMakeLists.txt
+++ b/sources/CMakeLists.txt
@@ -26,21 +26,22 @@ option (USE_QT5 "Use Qt5 instead of Qt4" ON)
 option (BUILD_GUI "Build GUI" ON)
 option (BUILD_HELPER "Build helper" ON)
 option (BUILD_LIBRARY "Build library" ON)
-option (BUILD_DATAENGINE "Build data engine" ON)
+option (BUILD_DATAENGINE "Build DataEngine" ON)
 option (BUILD_PLASMOID "Build plasmoid" ON)
-option (BUILD_TEST "Build unit test for the library" OFF)
 if (BUILD_GUI OR BUILD_HELPER)
     set (BUILD_LIBRARY ON)
 endif ()
 if (BUILD_PLASMOID)
     set (BUILD_DATAENGINE ON)
 endif ()
-if (BUILD_TEST)
+# documentation
+option (BUILD_DOCS "Build Doxygen documentation" OFF)
+if (BUILD_DOCS)
     set (BUILD_LIBRARY ON)
 endif ()
-# documentation
-option (BUILD_DOCS "Build documentation and install headers" ON)
-if (BUILD_DOCS)
+# test
+option (BUILD_TEST "Build unit tests" OFF)
+if (BUILD_TEST)
     set (BUILD_LIBRARY ON)
 endif ()
 # FIXME: dbus path