diff --git a/specs/phase0/p2p-interface.md b/specs/phase0/p2p-interface.md index efae68832..9391b3656 100644 --- a/specs/phase0/p2p-interface.md +++ b/specs/phase0/p2p-interface.md @@ -856,7 +856,7 @@ Clients MUST support requesting blocks since the latest finalized epoch. Clients MUST respond with at least one block, if they have it. Clients MAY limit the number of blocks in the response. -Clients MAY consider including a block in the response as soon as it passes the gossip validation rules. +Clients MAY include a block in the response as soon as it passes the gossip validation rules. Clients MUST NOT respond with blocks that failed gossip validation rules. Clients MUST NOT respond with blocks that failed `fork_choice.on_block`.