diff --git a/specs/sharding/beacon-chain.md b/specs/sharding/beacon-chain.md
index f577ab1df..41dcca410 100644
--- a/specs/sharding/beacon-chain.md
+++ b/specs/sharding/beacon-chain.md
@@ -751,7 +751,7 @@ def reset_pending_headers(state: BeaconState) -> None:
     # Add dummy "empty" PendingShardHeader (default vote for if no shard header available)
     next_epoch = get_current_epoch(state) + 1
     next_epoch_start_slot = compute_start_slot_at_epoch(next_epoch)
-    for slot in range(next_epoch_start_slot, next_epoch_start_slot + SLOTS_IN_EPOCH):
+    for slot in range(next_epoch_start_slot, next_epoch_start_slot + SLOTS_PER_EPOCH):
         for index in range(get_committee_count_per_slot(state, next_epoch)):
             shard = compute_shard_from_committee_index(state, slot, index)
             committee_length = len(get_beacon_committee(state, slot, shard))