diff --git a/tests/unit-tests/util/signal.t.cpp b/tests/unit-tests/util/signal.t.cpp
index 153ad91..3b263b4 100644
--- a/tests/unit-tests/util/signal.t.cpp
+++ b/tests/unit-tests/util/signal.t.cpp
@@ -184,7 +184,7 @@
 
 BOOST_AUTO_TEST_CASE(ManualDisconnectDestructed)
 {
-  unique_ptr<SignalOwner0> so(new SignalOwner0());
+  auto so = make_unique<SignalOwner0>();
 
   int hit = 0;
   Connection connection = so->sig.connect([&hit] { ++hit; });