diff --git a/gnes/preprocessor/__init__.py b/gnes/preprocessor/__init__.py
index 8f07ce88..38f48cb8 100644
--- a/gnes/preprocessor/__init__.py
+++ b/gnes/preprocessor/__init__.py
@@ -37,7 +37,8 @@
     'BaseAudioPreprocessor': 'base',
     'RawChunkPreprocessor': 'base',
     'GifChunkPreprocessor': 'video.ffmpeg',
-    'VggishPreprocessor': 'audio.vggish_example'
+    'VggishPreprocessor': 'audio.vggish_example',
+    'VideoDecodePreprocessor': 'video.video_decode'
 }
 
 register_all_class(_cls2file_map, 'preprocessor')