diff --git a/libc/kernel/uapi/linux/vdpa.h b/libc/kernel/uapi/linux/vdpa.h
index 462d579..a689f0d 100644
--- a/libc/kernel/uapi/linux/vdpa.h
+++ b/libc/kernel/uapi/linux/vdpa.h
@@ -17,6 +17,7 @@
   VDPA_CMD_DEV_GET,
   VDPA_CMD_DEV_CONFIG_GET,
   VDPA_CMD_DEV_VSTATS_GET,
+  VDPA_CMD_DEV_ATTR_SET,
 };
 enum vdpa_attr {
   VDPA_ATTR_UNSPEC,