diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index c8f34a3f0..9a23c5f14 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -625,7 +625,7 @@ def get_receipt_root() -> bytes32:
 
 ```
 
-The contract is at address `DEPOSIT_CONTRACT_ADDRESS`. When a user wishes to become a validator by moving their ETH from the 1.0 chain to the 2.0 chain, they should call the `deposit` function, sending along 32 ETH and providing as `deposit_params` a SimpleSerialize'd `DepositParams` object of the form:
+The contract is at address `DEPOSIT_CONTRACT_ADDRESS`. When a user wishes to become a validator by moving their ETH from the 1.0 chain to the 2.0 chain, they should call the `deposit` function, sending along `DEPOSIT_SIZE` ETH and providing as `deposit_params` a SimpleSerialize'd `DepositParams` object of the form:
 
 ```python
 {