diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8d1bd7477048b24803fa0b28cc5aea0d25610a3b..8d0cd4697ea4a788d08a26493f96947bb612b769 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,6 +18,7 @@ endif()
 
 # Find the DD4Hep package with corresponding library
 find_package(DD4hep 1.21 REQUIRED CONFIG COMPONENTS DDCore DDDetectors)
+dd4hep_set_compiler_flags()
 
 # Add the main factory 
 add_subdirectory(factory)