diff --git a/sys/modules/sound/driver/ess/Makefile b/sys/modules/sound/driver/ess/Makefile
index 4c8da8165809..73da252e9fd3 100644
--- a/sys/modules/sound/driver/ess/Makefile
+++ b/sys/modules/sound/driver/ess/Makefile
@@ -4,6 +4,6 @@
 
 KMOD=	snd_ess
 SRCS=	device_if.h bus_if.h isa_if.h pci_if.h
-SRCS+=	ess.c es1888.c
+SRCS+=	ess.c
 
 .include <bsd.kmod.mk>