--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,6 +12,8 @@ include(FeatureSummary)
 if(USE_KDE4)
   add_subdirectory(kstyle)
 else()
+  find_package(Qt5 REQUIRED CONFIG COMPONENTS Core DBus Gui Widgets)
+
   find_package(ECM 0.0.9 REQUIRED NO_MODULE)
   set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR} ${CMAKE_SOURCE_DIR}/cmake)