diff --git a/include/rexy/mpmc_queue.hpp b/include/rexy/mpmc_queue.hpp
index 26f8f48..25602cb 100644
--- a/include/rexy/mpmc_queue.hpp
+++ b/include/rexy/mpmc_queue.hpp
@@ -54,7 +54,7 @@ namespace rexy{
 	#if defined(__cpp_lib_hardware_interference_size)
 		//libc++ bug
 		// https://bugs.llvm.org/show_bug.cgi?id=41423
-		#if defined(_LIBCPP_VERSION) && _LIBCPP_VERSION >= 11000
+		#if defined(_LIBCPP_VERSION) && _LIBCPP_VERSION >= 12000
 			static constexpr size_t cacheline_size = std::hardware_destructive_interference_size;
 		#else
 			static constexpr size_t cacheline_size = 64;