1 files changed, 1 insertions, 1 deletions
diff --git a/utility.hpp b/utility.hpp
index 3b41ff3..d9119de 100644
--- a/utility.hpp
+++ b/utility.hpp
@@ -27,7 +27,7 @@
 namespace SimpleWeb {
   using string_view = std::string_view;
 }
-#elif !defined(USE_STANDALONE_ASIO)
+#elif !defined(ASIO_STANDALONE)
 #include <boost/utility/string_ref.hpp>
 namespace SimpleWeb {
   using string_view = boost::string_ref;