diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 5362446092..79af8dcc05 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2029,8 +2029,6 @@ typedef struct AVCodecContext {
     int (*get_encode_buffer)(struct AVCodecContext *s, AVPacket *pkt, int flags);
 } AVCodecContext;
 
-struct MpegEncContext;
-
 /**
  * @defgroup lavc_hwaccel AVHWAccel
  *