diff --git a/beacon-chain/beacon-network.md b/beacon-chain/beacon-network.md
index ef526e1..3c19817 100644
--- a/beacon-chain/beacon-network.md
+++ b/beacon-chain/beacon-network.md
@@ -205,11 +205,11 @@ content_key                          = selector + SSZ.serialize(light_client_opt
 
 > The `LightClientOptimisticUpdate` objects are ephemeral and only the latest is
 of use to the node. The content key requires the `optimistic_slot` (corresponding to
-the `slot` in the `attested_header` contained in the update) to be provided so that this
+the `signature_slot` in the the update) to be provided so that this
 object can be more efficiently gossiped. Nodes should decide to reject an
 `LightClientOptimisticUpdate` in case it is not newer than the one they already have.
 For `FindContent` requests, a node should compute the current slot based on its local clock
-and then use that slot minus 1 as a starting point for retrieving the most recent update.
+and then use that slot as a starting point for retrieving the most recent update.
 
 #### HistoricalSummaries