diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index c4fe82c27..9bcb8c3ae 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -54,7 +54,6 @@ The primary source of load on the beacon chain are "attestations". Attestations
 | `BASE_REWARD_QUOTIENT` | 2**15 (= 32,768) | — |
 | `MAX_VALIDATOR_CHURN_QUOTIENT` | 2**5 (= 32) | — |
 | `POW_CONTRACT_MERKLE_TREE_DEPTH` | 2**5 (= 32) | - |
-| `LOGOUT_MESSAGE` | `"LOGOUT"` | — |
 | `INITIAL_FORK_VERSION` | 0 | — |
 
 **Notes**
@@ -867,7 +866,7 @@ For each `SpecialRecord` `obj` in `block.specials`, verify that its `kind` is on
 ```
 Perform the following checks:
 
-* Verify that `BLSVerify(pubkey=validators[data.validator_index].pubkey, msg=hash(LOGOUT_MESSAGE + bytes8(fork_version)), sig=data.signature, domain=get_domain(state, current_slot, DOMAIN_LOGOUT))`
+* Verify that `BLSVerify(pubkey=validators[data.validator_index].pubkey, msg=bytes([0] * 32), sig=data.signature, domain=get_domain(state, current_slot, DOMAIN_LOGOUT))`
 * Verify that `validators[validator_index].status == ACTIVE`.
 * Verify that `block.slot >= last_status_change_slot + SHARD_PERSISTENT_COMMITTEE_CHANGE_PERIOD`