diff --git a/libavformat/Makefile b/libavformat/Makefile
index ecae4d0908..855b81d8c0 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -100,7 +100,7 @@ OBJS-$(CONFIG_BOA_DEMUXER)               += boadec.o
 OBJS-$(CONFIG_BRSTM_DEMUXER)             += brstm.o
 OBJS-$(CONFIG_C93_DEMUXER)               += c93.o vocdec.o voc.o
 OBJS-$(CONFIG_CAF_DEMUXER)               += cafdec.o caf.o mov.o mov_chan.o \
-                                            isom.o
+                                            isom.o replaygain.o
 OBJS-$(CONFIG_CAF_MUXER)                 += cafenc.o caf.o riff.o isom.o
 OBJS-$(CONFIG_CAVSVIDEO_DEMUXER)         += cavsvideodec.o rawdec.o
 OBJS-$(CONFIG_CAVSVIDEO_MUXER)           += rawenc.o