diff --git a/cpp/CMakeLists.txt b/cpp/CMakeLists.txt
index efb0e1a3d2e9..4fba7009e80d 100644
--- a/cpp/CMakeLists.txt
+++ b/cpp/CMakeLists.txt
@@ -147,7 +147,7 @@ if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
   add_compile_definitions(_GNU_SOURCE)
 endif()
 
-if(NOT ${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
+if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-class-memaccess")
 endif()