diff --git a/include/boost/config/compiler/hp_acc.hpp b/include/boost/config/compiler/hp_acc.hpp
index d6cc9fff..1520a56b 100644
--- a/include/boost/config/compiler/hp_acc.hpp
+++ b/include/boost/config/compiler/hp_acc.hpp
@@ -42,7 +42,7 @@
 #    define BOOST_HAS_PARTIAL_STD_ALLOCATOR
 #endif
 
-#if (__HP_aCC <= 53800 )
+#if (__HP_aCC >= 50000 ) && (__HP_aCC <= 53800 ) || (__HP_aCC < 31300 )
 #    define BOOST_NO_MEMBER_TEMPLATE_KEYWORD
 #endif