diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index 98df49eb9..002e53f97 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -1585,7 +1585,8 @@ For each `exit` in `block.body.exits`:
 * Let `validator = state.validator_registry[exit.validator_index]`.
 * Verify that `validator.exit_slot > state.slot + ENTRY_EXIT_DELAY`.
 * Verify that `state.slot >= exit.slot`.
-* Verify that `bls_verify(pubkey=validator.pubkey, message=ZERO_HASH, signature=exit.signature, domain=get_domain(state.fork, exit.slot, DOMAIN_EXIT))`.
+* Let `exit_message = hash_tree_root(Exit(slot=exit.slot, validator_index=exit.validator_index, signature=EMPTY_SIGNATURE))`.
+* Verify that `bls_verify(pubkey=validator.pubkey, message=exit_message, signature=exit.signature, domain=get_domain(state.fork, exit.slot, DOMAIN_EXIT))`.
 * Run `initiate_validator_exit(state, exit.validator_index)`.
 
 #### Custody