rename folders

Change-Id: Id70266deeefd066b03b146a13b5279eb8474d7f4
diff --git a/tests/unit-tests/bench.t.cpp b/tests/unit-tests/bench.t.cpp
index 0a738d7..2721811 100644
--- a/tests/unit-tests/bench.t.cpp
+++ b/tests/unit-tests/bench.t.cpp
@@ -20,7 +20,7 @@
 
 #include "ca-module.hpp"
 #include "client-module.hpp"
-#include "challenge-module/challenge-pin.hpp"
+#include "challenge-modules/challenge-pin.hpp"
 #include "protocol-detail/info.hpp"
 #include "test-common.hpp"