diff --git a/extern/ogre-ffmpeg-videoplayer/audiofactory.hpp b/extern/ogre-ffmpeg-videoplayer/audiofactory.hpp
index 06abd6a741..cf1ff46a85 100644
--- a/extern/ogre-ffmpeg-videoplayer/audiofactory.hpp
+++ b/extern/ogre-ffmpeg-videoplayer/audiofactory.hpp
@@ -12,7 +12,6 @@ class MovieAudioFactory
 {
 public:
     virtual boost::shared_ptr<MovieAudioDecoder> createDecoder(VideoState* videoState) = 0;
-    virtual ~MovieAudioFactory() {}
 };
 
 }
diff --git a/extern/ogre-ffmpeg-videoplayer/videoplayer.cpp b/extern/ogre-ffmpeg-videoplayer/videoplayer.cpp
index 434b676ee0..5487e916a2 100644
--- a/extern/ogre-ffmpeg-videoplayer/videoplayer.cpp
+++ b/extern/ogre-ffmpeg-videoplayer/videoplayer.cpp
@@ -1,5 +1,6 @@
 #include "videoplayer.hpp"
 
+#include "audiofactory.hpp"
 #include "videostate.hpp"
 
 namespace Video