diff --git a/include/drm/drm_modes.h b/include/drm/drm_modes.h
index eee3c9de6c4f..7d686f9a29bf 100644
--- a/include/drm/drm_modes.h
+++ b/include/drm/drm_modes.h
@@ -349,16 +349,6 @@ struct drm_display_mode {
 	 */
 	u8 type;
 
-	/**
-	 * @private_flags:
-	 *
-	 * Driver private flags. private_flags can only be used for mode
-	 * objects passed to drivers in modeset operations. It shouldn't be used
-	 * by atomic drivers since they can store any additional data by
-	 * subclassing state structures.
-	 */
-	int private_flags;
-
 	/**
 	 * @head:
 	 *