diff --git a/sys/conf/files.amd64 b/sys/conf/files.amd64
index 8b498859746d..ab65a6e3ab92 100644
--- a/sys/conf/files.amd64
+++ b/sys/conf/files.amd64
@@ -131,7 +131,7 @@ crypto/des/des_enc.c		optional	ipsec ipsec_esp
 crypto/des/des_enc.c		optional	netsmbcrypto
 crypto/des/des_setkey.c		optional	netsmbcrypto
 dev/acpica/acpi_if.m		standard
-dev/arcmsr/arcmsr.c		optional	pci
+dev/arcmsr/arcmsr.c		optional	arcmsr pci
 dev/fb/fb.c			optional	fb
 dev/fb/fb.c			optional	vga
 dev/fb/splash.c			optional	splash