diff --git a/libavformat/mpegts.h b/libavformat/mpegts.h
index b3eb3cda70..5bb9d181b3 100644
--- a/libavformat/mpegts.h
+++ b/libavformat/mpegts.h
@@ -52,7 +52,6 @@
 
 #define STREAM_TYPE_SUBTITLE_DVB    0x100
 
-unsigned int mpegts_crc32(const uint8_t *data, int len);
 extern AVOutputFormat mpegts_muxer;
 
 typedef struct MpegTSContext MpegTSContext;