diff --git a/CMakeLists.txt b/CMakeLists.txt
index 362ca8d56..83956f68e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -493,7 +493,7 @@ if (CMAKE_SYSTEM_NAME MATCHES "(SunOS|Solaris)")
 endif ()
 
 if (APPLE AND NOT IOS)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=x86-64 -fvisibility=default -std=c++11")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=default -std=c++11")
   if (NOT OPENSSL_ROOT_DIR)
       EXECUTE_PROCESS(COMMAND brew --prefix openssl
         OUTPUT_VARIABLE OPENSSL_ROOT_DIR