diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,7 +30,7 @@
 
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS I18n CoreAddons Service ConfigWidgets JobWidgets KIO Crash Completion XmlRpcClient WidgetsAddons Wallet Notifications IdleTime)
 
-find_package(Qt5 ${QT_MIN_VERSION} CONFIG COMPONENTS X11Extras)
+find_package(Qt5X11Extras ${QT_MIN_VERSION} CONFIG)
 
 include_directories("${CMAKE_CURRENT_BINARY_DIR}")
 configure_file(config-X11.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config-X11.h)
diff --git a/config-X11.h.cmake b/config-X11.h.cmake
--- a/config-X11.h.cmake
+++ b/config-X11.h.cmake
@@ -1,2 +1,2 @@
-#cmakedefine Qt5X11Extras_FOUND 1
+#cmakedefine01 Qt5X11Extras_FOUND
 #define HAVE_X11 Qt5X11Extras_FOUND