diff --git a/include/boost/config/stdlib/libcpp.hpp b/include/boost/config/stdlib/libcpp.hpp
index 289f2315..5477c99e 100644
--- a/include/boost/config/stdlib/libcpp.hpp
+++ b/include/boost/config/stdlib/libcpp.hpp
@@ -71,8 +71,6 @@
 #if !__has_include(<shared_mutex>)
 #  define BOOST_NO_CXX14_HDR_SHARED_MUTEX
 #endif
-#elif defined(__clang__) && (__clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4))
-#  define BOOST_NO_CXX14_HDR_SHARED_MUTEX
 #elif __cplusplus < 201402
 #  define BOOST_NO_CXX14_HDR_SHARED_MUTEX
 #endif