diff --git a/specs/lightclient/sync-protocol.md b/specs/lightclient/sync-protocol.md
index d247187cd..e901f32c6 100644
--- a/specs/lightclient/sync-protocol.md
+++ b/specs/lightclient/sync-protocol.md
@@ -39,7 +39,7 @@ Ethereum 2.0 is designed to be light client friendly. This allows low-resource c
 
 ```python
 class LightClientUpdate(Container):
-    # Updated beacon header (and authenticating branch)
+    # Updated beacon header
     header: BeaconBlockHeader
     # Sync committee signature to that header
     aggregation_bits: Bitlist[MAX_SYNC_COMMITTEE_SIZE]