diff --git a/cmake/Modules/HandleLibcxxFlags.cmake b/cmake/Modules/HandleLibcxxFlags.cmake
index 2a450daf..223b7b7b 100644
--- a/cmake/Modules/HandleLibcxxFlags.cmake
+++ b/cmake/Modules/HandleLibcxxFlags.cmake
@@ -96,7 +96,7 @@ endmacro()
 macro(add_compile_flags_if_supported)
   foreach(flag ${ARGN})
       mangle_name("${flag}" flagname)
-      check_cxx_compiler_flag("-Werror ${flag}" "LIBCXX_SUPPORTS_${flagname}_FLAG")
+      check_cxx_compiler_flag("${flag}" "LIBCXX_SUPPORTS_${flagname}_FLAG")
       add_compile_flags_if(LIBCXX_SUPPORTS_${flagname}_FLAG ${flag})
   endforeach()
 endmacro()