diff --git a/cmake/KF5AuthMacros.cmake b/cmake/KF5AuthMacros.cmake
--- a/cmake/KF5AuthMacros.cmake
+++ b/cmake/KF5AuthMacros.cmake
@@ -37,7 +37,7 @@
         configure_file(${KAUTH_STUB_FILES_DIR}/dbus_policy.stub
                         ${CMAKE_CURRENT_BINARY_DIR}/${HELPER_ID}.conf)
         install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${HELPER_ID}.conf
-                DESTINATION ${SYSCONF_INSTALL_DIR}/dbus-1/system.d/)
+                DESTINATION ${KDE_INSTALL_DBUSDIR}/system.d/)
 
         configure_file(${KAUTH_STUB_FILES_DIR}/dbus_service.stub
                         ${CMAKE_CURRENT_BINARY_DIR}/${HELPER_ID}.service)
diff --git a/src/ConfigureChecks.cmake b/src/ConfigureChecks.cmake
--- a/src/ConfigureChecks.cmake
+++ b/src/ConfigureChecks.cmake
@@ -224,7 +224,7 @@
 
     # Install some files as well
     install( FILES backends/dbus/org.kde.kf5auth.conf
-             DESTINATION ${SYSCONF_INSTALL_DIR}/dbus-1/system.d )
+             DESTINATION ${KDE_INSTALL_DBUSDIR}/system.d )
 
     install( FILES backends/dbus/dbus_policy.stub
                    backends/dbus/dbus_service.stub