diff --git a/libavformat/ogg.c b/libavformat/ogg.c
index c98bb22735..9a5f11d09c 100644
--- a/libavformat/ogg.c
+++ b/libavformat/ogg.c
@@ -28,8 +28,6 @@
 
 #include "avformat.h"
 
-#undef NDEBUG
-#include <assert.h>
 
 #define DECODER_BUFFER_SIZE 4096