diff --git a/src/jack.cxx b/src/jack.cxx
index 619bf07..572ed95 100644
--- a/src/jack.cxx
+++ b/src/jack.cxx
@@ -167,6 +167,7 @@ void Jack::activate()
   //Controller* m = new GenericMIDI("akai_apc.ctlr","apc");
   
   Controller* gui = new LupppGUI();
+  controllerUpdater->registerController( gui );
   
   if ( !gui )
   {
diff --git a/src/observer/midi.cxx b/src/observer/midi.cxx
index bc2fbf3..83b1729 100644
--- a/src/observer/midi.cxx
+++ b/src/observer/midi.cxx
@@ -17,7 +17,7 @@ MidiObserver::MidiObserver() :
 
 void MidiObserver::writeMidi( unsigned char* data )
 {
-  void* portBuffer = jack_port_get_buffer( jackInputPort, jack->getBuffersize() );
+  void* portBuffer = jack_port_get_buffer( jackOutputPort, jack->getBuffersize() );
   
   unsigned char* buffer = jack_midi_event_reserve( portBuffer, 0, 3);
   if( buffer == 0 )