diff --git a/sys/conf/files.amd64 b/sys/conf/files.amd64
index fe5136f106c..454218fd41a 100644
--- a/sys/conf/files.amd64
+++ b/sys/conf/files.amd64
@@ -533,6 +533,7 @@ compat/linux/linux_ioctl.c	optional	compat_linux32
 compat/linux/linux_ipc.c	optional	compat_linux32
 compat/linux/linux_mib.c	optional	compat_linux32
 compat/linux/linux_misc.c	optional	compat_linux32
+compat/linux/linux_mmap.c	optional	compat_linux32
 compat/linux/linux_signal.c	optional	compat_linux32
 compat/linux/linux_socket.c	optional	compat_linux32
 compat/linux/linux_stats.c	optional	compat_linux32
diff --git a/sys/conf/files.i386 b/sys/conf/files.i386
index c2e9dcb0322..e944ad98e61 100644
--- a/sys/conf/files.i386
+++ b/sys/conf/files.i386
@@ -96,6 +96,7 @@ compat/linux/linux_ioctl.c	optional compat_linux
 compat/linux/linux_ipc.c	optional compat_linux
 compat/linux/linux_mib.c	optional compat_linux
 compat/linux/linux_misc.c	optional compat_linux
+compat/linux/linux_mmap.c	optional compat_linux
 compat/linux/linux_signal.c	optional compat_linux
 compat/linux/linux_socket.c	optional compat_linux
 compat/linux/linux_stats.c	optional compat_linux