diff --git a/libc/kernel/uapi/linux/vfio.h b/libc/kernel/uapi/linux/vfio.h
index 1107b21..5910e40 100644
--- a/libc/kernel/uapi/linux/vfio.h
+++ b/libc/kernel/uapi/linux/vfio.h
@@ -336,6 +336,7 @@
   VFIO_DEVICE_STATE_RUNNING_P2P = 5,
   VFIO_DEVICE_STATE_PRE_COPY = 6,
   VFIO_DEVICE_STATE_PRE_COPY_P2P = 7,
+  VFIO_DEVICE_STATE_NR,
 };
 struct vfio_precopy_info {
   __u32 argsz;