diff --git a/include/boost/http_proto/detail/config.hpp b/include/boost/http_proto/detail/config.hpp
index 86a9db8b..2a3f0ad3 100644
--- a/include/boost/http_proto/detail/config.hpp
+++ b/include/boost/http_proto/detail/config.hpp
@@ -43,7 +43,7 @@ namespace http_proto {
 
 //------------------------------------------------
 
-#if defined(BOOST_NO_CXX14_AGGREGATE_NSDMI) || defined(BOOST_MSVC)
+#if defined(BOOST_NO_CXX14_AGGREGATE_NSDMI)
 # define BOOST_HTTP_PROTO_AGGREGATE_WORKAROUND
 #endif