diff --git a/tests/test-common.hpp b/tests/test-common.hpp
index 1c8c0e2..3498f81 100644
--- a/tests/test-common.hpp
+++ b/tests/test-common.hpp
@@ -62,7 +62,7 @@
 {
 public:
   DummyConfFileProcessor(ConfParameter& conf,
-                         SyncProtocol protocol = SYNC_PROTOCOL_PSYNC,
+                         SyncProtocol protocol = SyncProtocol::PSYNC,
                          HyperbolicState hyperbolicState = HYPERBOLIC_STATE_OFF,
                          const ndn::Name& networkName = "/ndn",
                          const ndn::Name& siteName = "/site",