diff --git a/src/platformtheme/CMakeLists.txt b/src/platformtheme/CMakeLists.txt
--- a/src/platformtheme/CMakeLists.txt
+++ b/src/platformtheme/CMakeLists.txt
@@ -51,5 +51,5 @@
 
 install(TARGETS KDEPlasmaPlatformTheme DESTINATION ${KDE_INSTALL_QTPLUGINDIR}/platformthemes)
 
-install(FILES fonts_global.upd fonts_akregator.upd fonts_kate.upd DESTINATION ${CMAKE_INSTALL_PREFIX}/share/kconf_update)
-install(PROGRAMS fonts_global.pl fonts_akregator.pl fonts_kate.pl DESTINATION ${CMAKE_INSTALL_PREFIX}/share/kconf_update)
+install(FILES fonts_global.upd fonts_akregator.upd fonts_kate.upd DESTINATION ${KDE_INSTALL_KCONFUPDATEDIR})
+install(PROGRAMS fonts_global.pl fonts_akregator.pl fonts_kate.pl DESTINATION ${KDE_INSTALL_KCONFUPDATEDIR})