diff --git a/wrapper/CMakeLists.txt b/wrapper/CMakeLists.txt
index 6264f5a27..5f5adf8db 100644
--- a/wrapper/CMakeLists.txt
+++ b/wrapper/CMakeLists.txt
@@ -247,6 +247,11 @@ message( STATUS "Compiling the python wrappers using a SMALL build." )
 set( CMAKE_C_FLAGS ${SIRE_C_FLAGS_SMALL} )
 set( CMAKE_CXX_FLAGS ${SIRE_CXX_FLAGS_SMALL} )
 
+if (SIRE_HAS_CPP_LIB)
+  message(STATUS "Using libc++ in place of libstdc++")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
+endif()
+
 set( CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${SIRE_SHARE_LINK_FLAGS}" )
 set( CMAKE_STATIC_LINKER_FLAGS "${CMAKE_STATIC_LINKER_FLAGS} ${SIRE_STATIC_LINK_FLAGS}" )
 set( CMAKE_EXE_LINKER_FLAGS    "${CMAKE_EXE_LINKER_FLAGS} ${SIRE_EXE_LINK_FLAGS}" )