tests: avoid deprecated boost headers
Change-Id: I1b79c9422109d2ce8832fd386b524bd9ffffa231
diff --git a/tests/tools/nfdc/help.t.cpp b/tests/tools/nfdc/help.t.cpp
index 8d4a65d..6e899ba 100644
--- a/tests/tools/nfdc/help.t.cpp
+++ b/tests/tools/nfdc/help.t.cpp
@@ -27,6 +27,12 @@
#include "tests/test-common.hpp"
+#if BOOST_VERSION >= 105900
+#include <boost/test/tools/output_test_stream.hpp>
+#else
+#include <boost/test/output_test_stream.hpp>
+#endif
+
namespace nfd {
namespace tools {
namespace nfdc {