diff --git a/include/boost/config/compiler/hp_acc.hpp b/include/boost/config/compiler/hp_acc.hpp
index bcd75ead..db22d93f 100644
--- a/include/boost/config/compiler/hp_acc.hpp
+++ b/include/boost/config/compiler/hp_acc.hpp
@@ -29,7 +29,7 @@
 #endif
 //
 // last known and checked version is 0:
-#if (__HP_aCC > 0)
+#if (__HP_aCC > 33100)
 #  if defined(BOOST_ASSERT_CONFIG)
 #     error "Unknown compiler version - please run the configure tests and report the results"
 #  endif