diff --git a/libavcodec/flvdec.c b/libavcodec/flvdec.c
index 9095cb6b00..ea494d7428 100644
--- a/libavcodec/flvdec.c
+++ b/libavcodec/flvdec.c
@@ -18,6 +18,7 @@
  */
 
 #include "mpegvideo.h"
+#include "flv.h"
 
 void ff_flv2_decode_ac_esc(GetBitContext *gb, int *level, int *run, int *last){
     int is11 = get_bits1(gb);