diff --git a/include/ndnboost/config/platform/cray.hpp b/include/ndnboost/config/platform/cray.hpp
index b25003d..200cdab 100644
--- a/include/ndnboost/config/platform/cray.hpp
+++ b/include/ndnboost/config/platform/cray.hpp
@@ -8,10 +8,10 @@
 
 //  SGI Irix specific config options:
 
-#define BOOST_PLATFORM "Cray"
+#define NDNBOOST_PLATFORM "Cray"
 
 // boilerplate code:
-#define BOOST_HAS_UNISTD_H
+#define NDNBOOST_HAS_UNISTD_H
 #include <ndnboost/config/posix_features.hpp>