diff --git a/GaudiPluginService/CMakeLists.txt b/GaudiPluginService/CMakeLists.txt
index 277e55d95325b274f4c495b2ecbc8a5b1b7fca40..ae13a1885f74b808b08bcc8e01ea65898861beb3 100644
--- a/GaudiPluginService/CMakeLists.txt
+++ b/GaudiPluginService/CMakeLists.txt
@@ -9,9 +9,10 @@ add_definitions(-DGaudi=DD4hep_Flavor -DUSE_BOOST_FILESYSTEM)
 if( APPLE ) 
   add_definitions( -DAPPLE) 
 endif()
+target_compile_options(DD4hepGaudiPluginMgr PRIVATE -Wno-shadow)
 target_compile_options(DD4hepGaudiPluginMgr PRIVATE -Wno-unused)
 target_compile_options(DD4hepGaudiPluginMgr PRIVATE -Wno-deprecated)
-target_compile_options(DD4hepGaudiPluginMgr PRIVATE -Wno-shadow)
+target_compile_options(DD4hepGaudiPluginMgr PRIVATE -Wno-return-type-c-linkage)
 
 target_link_libraries(DD4hepGaudiPluginMgr ${CMAKE_DL_LIBS} ${Boost_FILESYSTEM_LIBRARY} )
 SET_TARGET_PROPERTIES(DD4hepGaudiPluginMgr PROPERTIES VERSION ${DD4hep_VERSION} SOVERSION ${DD4hep_SOVERSION})