diff --git a/daemon/face/unix-stream-factory.cpp b/daemon/face/unix-stream-factory.cpp
index 2d5fe94..0bba3be 100644
--- a/daemon/face/unix-stream-factory.cpp
+++ b/daemon/face/unix-stream-factory.cpp
@@ -40,6 +40,10 @@
   return id;
 }
 
+UnixStreamFactory::UnixStreamFactory(const CtorParams& params)
+  : ProtocolFactory(params)
+{
+}
 
 void
 UnixStreamFactory::processConfig(OptionalConfigSection configSection,