diff --git a/types/src/extended_header.rs b/types/src/extended_header.rs
index e4741596..cd311654 100644
--- a/types/src/extended_header.rs
+++ b/types/src/extended_header.rs
@@ -120,7 +120,7 @@ pub struct ExtendedHeader {
     #[wasm_bindgen(skip)]
     pub validator_set: ValidatorSet,
     /// Header of the block data availability.
-    #[wasm_bindgen(skip)]
+    #[wasm_bindgen(getter_with_clone)]
     pub dah: DataAvailabilityHeader,
 }