diff --git a/tests/unit/util/concepts.t.cpp b/tests/unit/util/concepts.t.cpp
index 3141ec5..997f86a 100644
--- a/tests/unit/util/concepts.t.cpp
+++ b/tests/unit/util/concepts.t.cpp
@@ -25,7 +25,7 @@
  * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
  */
 
-#include "util/concepts.hpp"
+#include "ndn-cxx/util/concepts.hpp"
 
 namespace ndn {
 namespace tests {