diff --git a/lmdb-safe.hh b/lmdb-safe.hh
index 448e73d..16f5876 100644
--- a/lmdb-safe.hh
+++ b/lmdb-safe.hh
@@ -11,9 +11,14 @@
 #include <mutex>
 
 #if __cplusplus < 201703L
+#if BOOST_VERSION > 105400
 #include <boost/utility/string_view.hpp>
 using boost::string_view;
 #else
+#include <boost/utility/string_ref.hpp>
+using string_view = boost::string_ref;
+#endif
+#else // C++17
 using std::string_view;
 #endif