diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index adcbb05b120b..de8387b7ceb6 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -43,7 +43,7 @@ struct fid {
 			u32 parent_ino;
 			u32 parent_gen;
 		} i32;
-		__u32 raw[6];
+		__u32 raw[0];
 	};
 };