diff --git a/libavcodec/cook.c b/libavcodec/cook.c
index fb04cf574e..88ee071b2b 100644
--- a/libavcodec/cook.c
+++ b/libavcodec/cook.c
@@ -45,7 +45,6 @@
 #include <stddef.h>
 #include <stdio.h>
 
-#define ALT_BITSTREAM_READER
 #include "avcodec.h"
 #include "bitstream.h"
 #include "dsputil.h"