diff --git a/sys/modules/sound/pcm/Makefile b/sys/modules/sound/pcm/Makefile
index 083381538a90..c2037cc34dac 100644
--- a/sys/modules/sound/pcm/Makefile
+++ b/sys/modules/sound/pcm/Makefile
@@ -8,6 +8,6 @@ SRCS+=	ac97_if.h channel_if.h feeder_if.h mixer_if.h
 SRCS+=	ac97_if.c channel_if.c feeder_if.c mixer_if.c
 SRCS+=	ac97.c buffer.c channel.c dsp.c fake.c
 SRCS+=	feeder.c feeder_fmt.c feeder_rate.c
-SRCS+=	mixer.c sound.c
+SRCS+=	mixer.c sound.c vchan.c
 
 .include <bsd.kmod.mk>
diff --git a/sys/modules/sound/sound/Makefile b/sys/modules/sound/sound/Makefile
index 083381538a90..c2037cc34dac 100644
--- a/sys/modules/sound/sound/Makefile
+++ b/sys/modules/sound/sound/Makefile
@@ -8,6 +8,6 @@ SRCS+=	ac97_if.h channel_if.h feeder_if.h mixer_if.h
 SRCS+=	ac97_if.c channel_if.c feeder_if.c mixer_if.c
 SRCS+=	ac97.c buffer.c channel.c dsp.c fake.c
 SRCS+=	feeder.c feeder_fmt.c feeder_rate.c
-SRCS+=	mixer.c sound.c
+SRCS+=	mixer.c sound.c vchan.c
 
 .include <bsd.kmod.mk>