diff --git a/tests/face/dummy-face.hpp b/tests/face/dummy-face.hpp
index 4e4bb57..9c7252c 100644
--- a/tests/face/dummy-face.hpp
+++ b/tests/face/dummy-face.hpp
@@ -21,7 +21,7 @@
 {
 public:
   DummyFaceImpl()
-    : FaceBase(FaceUri("dummy://"))
+    : FaceBase(FaceUri("dummy://"), FaceUri("dummy://"))
   {
   }