Index: uspace/drv/audio/sb16/Makefile
===================================================================
--- uspace/drv/audio/sb16/Makefile	(revision c885a217667f229b9378a27fddafda5a31f7163d)
+++ uspace/drv/audio/sb16/Makefile	(revision 10f2b34a3816de7c624f0fa0a1fb46cc14d6c5c9)
@@ -42,4 +42,5 @@
 	main.c \
 	mixer.c \
+	mixer_iface.c \
 	sb16.c