diff --git a/src/add-ons/media/plugins/musepack/MusePack.cpp b/src/add-ons/media/plugins/musepack/MusePack.cpp
index dcfc25550c..886c9253d2 100644
--- a/src/add-ons/media/plugins/musepack/MusePack.cpp
+++ b/src/add-ons/media/plugins/musepack/MusePack.cpp
@@ -8,9 +8,6 @@
 #include "MusePackReader.h"
 #include "MusePackDecoder.h"
 
-#include <ByteOrder.h>
-#include <InterfaceDefs.h>
-
 
 Reader *
 MusePackPlugin::NewReader()
@@ -28,6 +25,7 @@ status_t
 MusePackPlugin::RegisterPlugin()
 {
 	PublishDecoder("audiocodec/musepack", "musepack", "musepack decoder");
+	return B_OK;
 }
 
 
diff --git a/src/add-ons/media/plugins/musepack/MusePack.h b/src/add-ons/media/plugins/musepack/MusePack.h
index 68977030b0..7a88792684 100644
--- a/src/add-ons/media/plugins/musepack/MusePack.h
+++ b/src/add-ons/media/plugins/musepack/MusePack.h
@@ -10,7 +10,7 @@
 #include "DecoderPlugin.h"
 
 
-class MusePackPlugin : public ReaderPlugin, DecoderPlugin {
+class MusePackPlugin : public ReaderPlugin, public DecoderPlugin {
 	public:
 		Reader *NewReader();