diff --git a/libavformat/Makefile b/libavformat/Makefile
index 6abe6a1faa..0d18f742f9 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -50,7 +50,7 @@ OBJS-$(CONFIG_FLAC_DEMUXER)              += raw.o
 OBJS-$(CONFIG_FLAC_MUXER)                += raw.o
 OBJS-$(CONFIG_FLIC_DEMUXER)              += flic.o
 OBJS-$(CONFIG_FLV_DEMUXER)               += flvdec.o
-OBJS-$(CONFIG_FLV_MUXER)                 += flvenc.o
+OBJS-$(CONFIG_FLV_MUXER)                 += flvenc.o avc.o
 OBJS-$(CONFIG_FOURXM_DEMUXER)            += 4xm.o
 OBJS-$(CONFIG_FRAMECRC_MUXER)            += framecrcenc.o
 OBJS-$(CONFIG_GIF_MUXER)                 += gif.o