diff --git a/beacon_node/network/src/sync/range_sync/range.rs b/beacon_node/network/src/sync/range_sync/range.rs
index 58f137dfe..b0b99e3ca 100644
--- a/beacon_node/network/src/sync/range_sync/range.rs
+++ b/beacon_node/network/src/sync/range_sync/range.rs
@@ -142,13 +142,20 @@ where
                 debug!(self.log, "Finalization sync peer joined"; "peer_id" => %peer_id);
                 self.awaiting_head_peers.remove(&peer_id);
 
+                // Because of our change in finalized sync batch size from 2 to 1 and our transition
+                // to using exact epoch boundaries for batches (rather than one slot past the epoch
+                // boundary), we need to sync finalized sync to 2 epochs + 1 slot past our peer's
+                // finalized slot in order to finalize the chain locally.
+                let target_head_slot =
+                    remote_finalized_slot + (2 * T::EthSpec::slots_per_epoch()) + 1;
+
                 // Note: We keep current head chains. These can continue syncing whilst we complete
                 // this new finalized chain.
 
                 self.chains.add_peer_or_create_chain(
                     local_info.finalized_epoch,
                     remote_info.finalized_root,
-                    remote_finalized_slot,
+                    target_head_slot,
                     peer_id,
                     RangeSyncType::Finalized,
                     network,