diff --git a/src/table.rs b/src/table.rs
index 9c57ca8..00e3aab 100644
--- a/src/table.rs
+++ b/src/table.rs
@@ -474,6 +474,7 @@ impl<'lua> Table<'lua> {
         }
     }
 
+    #[cfg(any(feature = "async", feature = "serialize"))]
     pub(crate) fn raw_sequence_values_by_len<V: FromLua<'lua>>(
         self,
         len: Option<Integer>,