diff --git a/LEGO1/mxpresenter.h b/LEGO1/mxpresenter.h
index ed6f69a2..4233ad69 100644
--- a/LEGO1/mxpresenter.h
+++ b/LEGO1/mxpresenter.h
@@ -1,6 +1,9 @@
 #ifndef MXPRESENTER_H
 #define MXPRESENTER_H
 
+#include "mxstreamcontroller.h"
+#include "mxdsaction.h"
+
 class MxPresenter
 {
 protected:
diff --git a/LEGO1/mxstreamer.h b/LEGO1/mxstreamer.h
index 785c475b..9c7b38f5 100644
--- a/LEGO1/mxstreamer.h
+++ b/LEGO1/mxstreamer.h
@@ -8,6 +8,7 @@ class MxStreamer
 public:
   __declspec(dllexport) MxStreamController *Open(const char *name, unsigned short p);
   __declspec(dllexport) long Close(const char *p);
+  const char* GetClassName();
 
 };