diff --git a/CMakeLists.txt b/CMakeLists.txt
index e2dded28..4ba62836 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,87 +1,87 @@
 cmake_minimum_required(VERSION 3.0)
 
 project(PowerDevil)
 set(PROJECT_VERSION "5.19.80")
 set(PROJECT_VERSION_MAJOR 5)
 
 set(QT_MIN_VERSION "5.14.0")
 set(KF5_MIN_VERSION "5.66.0")
 
 find_package(ECM ${KF5_MIN_VERSION} REQUIRED NO_MODULE)
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
 
 include(ECMSetupVersion)
 include(ECMQtDeclareLoggingCategory)
 include(FeatureSummary)
 include(KDEInstallDirs)
 include(KDECMakeSettings)
 include(KDECompilerSettings NO_POLICY_SCOPE)
 include(KDEClangFormat)
 
 find_package(Qt5 ${QT_MIN_VERSION} CONFIG REQUIRED COMPONENTS Widgets DBus X11Extras)
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS Activities Auth IdleTime Config DBusAddons Solid I18n GlobalAccel KIO NotifyConfig Wayland DocTools Crash Notifications)
 find_package(KF5Screen CONFIG REQUIRED)
 find_package(LibKWorkspace CONFIG REQUIRED)
 
 find_package(KF5BluezQt ${KF5_MIN_VERSION})
 set_package_properties(KF5BluezQt
     PROPERTIES DESCRIPTION "Qt wrapper for BlueZ 5 DBus API"
     TYPE OPTIONAL
     PURPOSE "Support for wireless energy saving actions"
 )
 find_package(KF5NetworkManagerQt ${KF5_MIN_VERSION})
 set_package_properties(KF5NetworkManagerQt
     PROPERTIES DESCRIPTION "Qt wrapper for NetworkManager API"
     TYPE OPTIONAL
     PURPOSE "Support for wireless energy saving actions"
 )
 
 set(HAVE_WIRELESS_SUPPORT FALSE)
 if(KF5NetworkManagerQt_FOUND AND KF5BluezQt_FOUND)
     set(HAVE_WIRELESS_SUPPORT TRUE)
 endif()
 add_feature_info(
     "Wireless power saving"
     HAVE_WIRELESS_SUPPORT
     "Support turning off signal-transmitting devices to save energy"
 )
 
 find_package(LibKWorkspace ${PROJECT_VERSION} REQUIRED)
 
 find_package(UDev REQUIRED)
 
 find_package(XCB REQUIRED COMPONENTS XCB RANDR DPMS)
 
 option(HAVE_DDCUTIL "DDCUtil library support" OFF)
 if(HAVE_DDCUTIL)
     find_package(DDCUtil REQUIRED)
-    add_compile_definitions(WITH_DDCUTIL)
+    add_definitions(-DWITH_DDCUTIL)
     set_package_properties(DDCUtil
         PROPERTIES DESCRIPTION "DDCUtil library support"
         TYPE OPTIONAL
         PURPOSE "Set monitor settings over DDC/CI channel"
     )
 else()
     add_feature_info("DDCUtil" HAVE_DDCUTIL "DDCUtil library support is disabled by default as recommended by authors, add -DHAVE_DDCUTIL=On to enable")
 endif()
 
 include_directories (
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}/daemon
 )
 
 add_definitions(-DQT_NO_KEYWORDS)
 add_definitions(-DQT_NO_FOREACH)
 
 add_subdirectory(daemon)
 add_subdirectory(kcmodule)
 add_subdirectory(doc)
 
 install( FILES powerdevil.categories  DESTINATION  ${KDE_INSTALL_LOGGINGCATEGORIESDIR})
 install( FILES powerdevil.notifyrc DESTINATION ${KDE_INSTALL_KNOTIFY5RCDIR} )
 
 # add clang-format target for all our real source files
 file(GLOB_RECURSE ALL_CLANG_FORMAT_SOURCE_FILES *.cpp *.h)
 kde_clang_format(${ALL_CLANG_FORMAT_SOURCE_FILES})
 
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)