diff --git a/CMakeLists.txt b/CMakeLists.txt
index bf065246..8eab5a41 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -45,7 +45,6 @@ endif()
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 
 if(MSVC)
-    add_compile_options(/Zc:threadSafeInit-)
     add_compile_options(/arch:SSE2)
     # Statically link Microsoft's CRT.
     set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")