diff --git a/specs/sharding/beacon-chain.md b/specs/sharding/beacon-chain.md
index 6fd83c9cf..df52cce41 100644
--- a/specs/sharding/beacon-chain.md
+++ b/specs/sharding/beacon-chain.md
@@ -763,7 +763,7 @@ def reset_pending_headers(state: BeaconState) -> None:
                 slot=slot,
                 shard=shard,
                 commitment=DataCommitment(),
-                root=Root(),
+                root=hash_tree_root(ShardBlobHeader(slot = slot, shard = shard)),
                 votes=Bitlist[MAX_VALIDATORS_PER_COMMITTEE]([0] * committee_length),
                 confirmed=False,
             ))