diff --git a/sys/conf/files b/sys/conf/files
index 13cd14eb47e..08ab51ffc19 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -2589,6 +2589,7 @@ dev/xen/netback/netback.c	optional xen | xenhvm
 dev/xen/netfront/netfront.c	optional xen | xenhvm
 dev/xen/xenpci/xenpci.c		optional xenpci
 dev/xen/timer/timer.c		optional xen | xenhvm
+dev/xen/pvcpu/pvcpu.c		optional xen | xenhvm
 dev/xl/if_xl.c			optional xl pci
 dev/xl/xlphy.c			optional xl pci
 fs/deadfs/dead_vnops.c		standard