diff --git a/drivers/sound/Makefile b/drivers/sound/Makefile
index 18ad2c9..8fdffb1 100644
--- a/drivers/sound/Makefile
+++ b/drivers/sound/Makefile
@@ -27,6 +27,7 @@
 
 COBJS-$(CONFIG_SOUND)	+= sound.o
 COBJS-$(CONFIG_I2S)	+= samsung-i2s.o
+COBJS-$(CONFIG_SOUND_WM8994)	+= wm8994.o
 
 COBJS	:= $(COBJS-y)
 SRCS	:= $(COBJS:.o=.c)