diff --git a/ref/src/seq.rs b/ref/src/seq.rs
index e0a27310..7d5a642f 100644
--- a/ref/src/seq.rs
+++ b/ref/src/seq.rs
@@ -42,9 +42,9 @@ macro_rules! tuple {
                     stream.tuple_begin(None, None, None, Some($len))?;
 
                     $(
-                        stream.tuple_value_begin(None, &Index::new($i))?;
+                        stream.tuple_value_begin(None, &Index::new($i).with_tag(&sval::tags::VALUE_OFFSET))?;
                         crate::stream_ref(stream, &self.$i)?;
-                        stream.tuple_value_end(None, &Index::new($i))?;
+                        stream.tuple_value_end(None, &Index::new($i).with_tag(&sval::tags::VALUE_OFFSET))?;
                     )+
 
                     stream.tuple_end(None, None, None)