diff --git a/include/boost/config/compiler/hp_acc.hpp b/include/boost/config/compiler/hp_acc.hpp
index 1520a56b..b5c587ab 100644
--- a/include/boost/config/compiler/hp_acc.hpp
+++ b/include/boost/config/compiler/hp_acc.hpp
@@ -46,6 +46,8 @@
 #    define BOOST_NO_MEMBER_TEMPLATE_KEYWORD
 #endif
 
+#define BOOST_NO_MEMBER_TEMPLATE_FRIENDS
+
 #define BOOST_COMPILER "HP aCC version " BOOST_STRINGIZE(__HP_aCC)
 
 //