diff --git a/tests/test-state.cpp b/tests/test-state.cpp
index 956bbbd..cb53bd5 100644
--- a/tests/test-state.cpp
+++ b/tests/test-state.cpp
@@ -17,7 +17,7 @@
  * PSync, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
  **/
 
-#include "detail/state.hpp"
+#include "PSync/detail/state.hpp"
 
 #include <boost/test/unit_test.hpp>
 #include <ndn-cxx/name.hpp>