diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index cb57c0a45..dbf399a8c 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -1360,7 +1360,7 @@ The initial deployment phases of Ethereum 2.0 are implemented without consensus
 
 ### Deposit arguments
 
-The deposit contract has a single `deposit` function which takes as argument a SimpleSerialize'd `DepositData`.
+The deposit contract has a single `deposit` function which takes as argument the `DepositData` fields.
 
 ### Withdrawal credentials