diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h
index 66a0a086eaf17b31f86f9ec420875129ca4a3c2e..dd89c9ac515fe09d3659240c67d0e6a902570697 100644
--- a/include/linux/vdpa.h
+++ b/include/linux/vdpa.h
@@ -44,6 +44,7 @@ struct vdpa_mgmt_dev;
  * @config: the configuration ops for this device.
  * @index: device index
  * @features_valid: were features initialized? for legacy guests
+ * @nvqs: maximum number of supported virtqueues
  */
 struct vdpa_device {
 	struct device dev;