diff --git a/cmake/Modules/ThirdpartyToolchain.cmake b/cmake/Modules/ThirdpartyToolchain.cmake
index 389a2a6aa42b..04e3f6587a9c 100644
--- a/cmake/Modules/ThirdpartyToolchain.cmake
+++ b/cmake/Modules/ThirdpartyToolchain.cmake
@@ -98,7 +98,10 @@ include_directories(${Boost_INCLUDE_DIR})
 if(RAY_USE_GLOG)
   message(STATUS "Starting to build glog")
   set(GLOG_VERSION "0.3.5")
-  set(GLOG_CMAKE_CXX_FLAGS ${EP_CXX_FLAGS} "-fPIC")
+  set(GLOG_CMAKE_CXX_FLAGS "${EP_CXX_FLAGS} -fPIC")
+  if(APPLE)
+    set(GLOG_CMAKE_CXX_FLAGS "${GLOG_CMAKE_CXX_FLAGS} -mmacosx-version-min=10.12")
+  endif()
 
   set(GLOG_URL "https://github.com/google/glog/archive/v${GLOG_VERSION}.tar.gz")
   set(GLOG_PREFIX "${CMAKE_CURRENT_BINARY_DIR}/glog_ep-prefix/src/glog_ep")