diff --git a/CMakeLists.txt b/CMakeLists.txt
index f9dec85..1f09db7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -13,8 +13,7 @@ project( bgfx )
 
 set_property( GLOBAL PROPERTY USE_FOLDERS ON )
 if( APPLE )
-	set( CMAKE_CXX_FLAGS "-ObjC++" )
-	set( CMAKE_CXX_FLAGS "--std=c++11" )
+	set( CMAKE_CXX_FLAGS "-ObjC++ --std=c++11" )
 endif()
 
 option( BGFX_BUILD_TOOLS    "Build bgfx tools."           ON  )