diff --git a/setup.h_vms b/setup.h_vms
index 7e684e34fa..0528ad35fb 100644
--- a/setup.h_vms
+++ b/setup.h_vms
@@ -754,6 +754,16 @@ typedef pid_t GPid;
  */
 #undef HAVE_TR1_UNORDERED_SET
 
+/*
+ * Define if your compiler has <tr1/type_traits>
+ */
+#undef HAVE_TR1_TYPE_TRAITS
+
+/*
+ * Define if your compiler has <type_traits>
+ */
+#undef HAVE_TYPE_TRAITS
+
 /*
  * Define if the compiler supports simple visibility declarations.
  */