diff --git a/tests/unit/ndebug.t.cpp b/tests/unit/ndebug.t.cpp
index 7f1bb5a..39dcd8f 100644
--- a/tests/unit/ndebug.t.cpp
+++ b/tests/unit/ndebug.t.cpp
@@ -19,7 +19,7 @@
  * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
  */
 
-#include "ndn-cxx/common.hpp"
+#include "ndn-cxx/detail/common.hpp"
 
 #include "tests/boost-test.hpp"