diff --git a/CMakeLists.txt b/CMakeLists.txt
index b1dccce4ea..cf72544892 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,6 +14,7 @@ find_package(ECM 5.38 REQUIRED NO_MODULE)
 include(FeatureSummary)
 include(WriteBasicConfigVersionFile)
 include(GenerateExportHeader)
+include(KDEClangFormat)
 
 # where to look first for cmake modules, before ${CMAKE_ROOT}/Modules/ is checked
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR})
@@ -739,6 +740,10 @@ endif()
 
 add_subdirectory(kconf_update)
 
+# 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)
 
 include(CMakePackageConfigHelpers)