diff --git a/specs/lightclient/sync-protocol.md b/specs/lightclient/sync-protocol.md
index 156e6e78e..562b7b5bb 100644
--- a/specs/lightclient/sync-protocol.md
+++ b/specs/lightclient/sync-protocol.md
@@ -185,7 +185,7 @@ def process_light_client_update(store: LightClientStore, update: LightClientUpda
     store.valid_updates.append(update)
 
     if (
-        sum(update.sync_committee_bits) * 3 > len(update.sync_committee_bits) * 2
+        sum(update.sync_committee_bits) * 3 >= len(update.sync_committee_bits) * 2
         and update.header != update.finality_header
     ):
         # Apply update if 2/3 quorum is reached and we have a finality proof