diff --git a/core/common.hpp b/core/common.hpp
index 28db409..fe95d62 100644
--- a/core/common.hpp
+++ b/core/common.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2020,  Regents of the University of California,
+ * Copyright (c) 2014-2021,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -28,20 +28,20 @@
 
 #include "core/config.hpp"
 
-#ifdef WITH_TESTS
-#define VIRTUAL_WITH_TESTS virtual
-#define PUBLIC_WITH_TESTS_ELSE_PROTECTED public
-#define PUBLIC_WITH_TESTS_ELSE_PRIVATE public
-#define PROTECTED_WITH_TESTS_ELSE_PRIVATE protected
-#define OVERRIDE_WITH_TESTS_ELSE_FINAL override
-#define FINAL_UNLESS_WITH_TESTS
+#ifdef NFD_WITH_TESTS
+#define NFD_VIRTUAL_WITH_TESTS virtual
+#define NFD_PUBLIC_WITH_TESTS_ELSE_PROTECTED public
+#define NFD_PUBLIC_WITH_TESTS_ELSE_PRIVATE public
+#define NFD_PROTECTED_WITH_TESTS_ELSE_PRIVATE protected
+#define NFD_OVERRIDE_WITH_TESTS_ELSE_FINAL override
+#define NFD_FINAL_UNLESS_WITH_TESTS
 #else
-#define VIRTUAL_WITH_TESTS
-#define PUBLIC_WITH_TESTS_ELSE_PROTECTED protected
-#define PUBLIC_WITH_TESTS_ELSE_PRIVATE private
-#define PROTECTED_WITH_TESTS_ELSE_PRIVATE private
-#define OVERRIDE_WITH_TESTS_ELSE_FINAL final
-#define FINAL_UNLESS_WITH_TESTS final
+#define NFD_VIRTUAL_WITH_TESTS
+#define NFD_PUBLIC_WITH_TESTS_ELSE_PROTECTED protected
+#define NFD_PUBLIC_WITH_TESTS_ELSE_PRIVATE private
+#define NFD_PROTECTED_WITH_TESTS_ELSE_PRIVATE private
+#define NFD_OVERRIDE_WITH_TESTS_ELSE_FINAL final
+#define NFD_FINAL_UNLESS_WITH_TESTS final
 #endif
 
 #include <cstddef>