diff --git a/include/boost/unordered/detail/config.hpp b/include/boost/unordered/detail/config.hpp
index 1289b69a..e6e7ed98 100644
--- a/include/boost/unordered/detail/config.hpp
+++ b/include/boost/unordered/detail/config.hpp
@@ -14,7 +14,8 @@
     (__GNUC__ < 3 || __GNUC__ == 3 && __GNUC_MINOR__ <= 3)
 #  define BOOST_UNORDERED_NO_HAS_MOVE_ASSIGN
 #elif BOOST_WORKAROUND(BOOST_INTEL, < 900) || \
-    BOOST_WORKAROUND(__EDG_VERSION__, < 304)
+    BOOST_WORKAROUND(__EDG_VERSION__, < 304) || \
+    BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x0593))
 #  define BOOST_UNORDERED_NO_HAS_MOVE_ASSIGN
 #endif