diff --git a/specs/deneb/p2p-interface.md b/specs/deneb/p2p-interface.md
index 363871ed8..82dfa3cc2 100644
--- a/specs/deneb/p2p-interface.md
+++ b/specs/deneb/p2p-interface.md
@@ -304,7 +304,7 @@ Clients MUST respond with at least one sidecar, if they have it.
 Clients MAY limit the number of blocks and sidecars in the response.
 
 Clients SHOULD include a sidecar in the response as soon as it passes the gossip validation rules.
-Clients MUST NOT respond with sidecars that fails gossip validation rules.
+Clients MUST NOT respond with sidecars that fail gossip validation rules.
 Clients SHOULD NOT respond with sidecars related to blocks that fail gossip validation rules.
 Clients SHOULD NOT include sidecars related to blocks that fail `state_transition(block)`.