diff --git a/CMakeLists.txt b/CMakeLists.txt
index 32f49a5..1f2f6ba 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -310,7 +310,7 @@
   set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -march=${CMAKE_SYSTEM_PROCESSOR}")
 endif()
 
-if (${ARCH} STREQUAL "x86" AND APPLE)
+if (${ARCH} STREQUAL "x86" AND APPLE AND ${CMAKE_VERSION} VERSION_LESS "3.0")
   # With CMake 2.8.x, ${CMAKE_SYSTEM_PROCESSOR} evalutes to i386 on OS X,
   # but clang defaults to 64-bit builds on OS X unless otherwise told.
   # Set ARCH to x86_64 so clang and CMake agree. This is fixed in CMake 3.