diff --git a/packages/beacon-node/src/chain/errors/payloadAttestation.ts b/packages/beacon-node/src/chain/errors/payloadAttestation.ts
index c9f15a2b657d..f6aa7f99dd52 100644
--- a/packages/beacon-node/src/chain/errors/payloadAttestation.ts
+++ b/packages/beacon-node/src/chain/errors/payloadAttestation.ts
@@ -5,6 +5,7 @@ export enum PayloadAttestationErrorCode {
   NOT_CURRENT_SLOT = "PAYLOAD_ATTESTATION_ERROR_NOT_CURRENT_SLOT",
   PAYLOAD_ATTESTATION_ALREADY_KNOWN = "PAYLOAD_ATTESTATION_ERROR_PAYLOAD_ATTESTATION_ALREADY_KNOWN",
   UNKNOWN_BLOCK_ROOT = "PAYLOAD_ATTESTATION_ERROR_UNKNOWN_BLOCK_ROOT",
+  INVALID_BLOCK_SLOT = "PAYLOAD_ATTESTATION_ERROR_INVALID_BLOCK_SLOT",
   INVALID_BLOCK = "PAYLOAD_ATTESTATION_ERROR_INVALID_BLOCK",
   INVALID_ATTESTER = "PAYLOAD_ATTESTATION_ERROR_INVALID_ATTESTER",
   INVALID_SIGNATURE = "PAYLOAD_ATTESTATION_ERROR_INVALID_SIGNATURE",
@@ -18,6 +19,7 @@ export type PayloadAttestationErrorType =
       blockRoot: RootHex;
     }
   | {code: PayloadAttestationErrorCode.UNKNOWN_BLOCK_ROOT; blockRoot: RootHex}
+  | {code: PayloadAttestationErrorCode.INVALID_BLOCK_SLOT; blockRoot: RootHex; blockSlot: Slot; slot: Slot}
   | {code: PayloadAttestationErrorCode.INVALID_BLOCK; blockRoot: RootHex}
   | {code: PayloadAttestationErrorCode.INVALID_ATTESTER; attesterIndex: ValidatorIndex}
   | {code: PayloadAttestationErrorCode.INVALID_SIGNATURE};
diff --git a/packages/beacon-node/src/chain/validation/payloadAttestationMessage.ts b/packages/beacon-node/src/chain/validation/payloadAttestationMessage.ts
index 089fe743f820..48e639017d7e 100644
--- a/packages/beacon-node/src/chain/validation/payloadAttestationMessage.ts
+++ b/packages/beacon-node/src/chain/validation/payloadAttestationMessage.ts
@@ -70,6 +70,17 @@ async function validatePayloadAttestationMessage(
     });
   }
 
+  // [IGNORE] The block referenced by `data.beacon_block_root` is at slot `data.slot`,
+  // i.e. the block has `block.slot == data.slot`.
+  if (block.slot !== data.slot) {
+    throw new PayloadAttestationError(GossipAction.IGNORE, {
+      code: PayloadAttestationErrorCode.INVALID_BLOCK_SLOT,
+      blockRoot: toRootHex(data.beaconBlockRoot),
+      blockSlot: block.slot,
+      slot: data.slot,
+    });
+  }
+
   // [REJECT] The message's block `data.beacon_block_root` passes validation.
   // TODO GLOAS: implement this. Technically if we cannot get proto block from fork choice,
   // it is possible that the block didn't pass the validation