diff --git a/include/dbus-c++/dispatcher.h b/include/dbus-c++/dispatcher.h
index 10179ff..d65c310 100644
--- a/include/dbus-c++/dispatcher.h
+++ b/include/dbus-c++/dispatcher.h
@@ -150,7 +150,7 @@ private:
 class DXXAPI Dispatcher
 {
 public:
-
+        Dispatcher() : _mutex_p(true) {}
 	virtual ~Dispatcher()
 	{}