diff --git a/sys/conf/files b/sys/conf/files
index d2d1f8ff4ba..d01be41295c 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -385,7 +385,7 @@ dev/mly/mly_cam.c	optional mly
 dev/mly/mly_pci.c	optional mly
 dev/musycc/musycc.c	optional musycc
 dev/null/null.c		standard
-dev/nulmodem/tty_nulmodem.c	optional nmdm
+dev/nmdm/nmdm.c		optional nmdm
 dev/pccard/card_if.m	optional card
 dev/pccard/card_if.m	optional cardbus
 dev/pccard/card_if.m	optional pccard