diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index 8a46b7d85..0df5e1d23 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -588,7 +588,7 @@ def deposit(deposit_params: bytes[2048]):
     for i in range(POW_CONTRACT_MERKLE_TREE_DEPTH):
         index //= 2
         self.receipt_tree[index] = sha3(concat(self.receipt_tree[index * 2], self.receipt_tree[index * 2 + 1]))
-    if msg.value >= MIN_DEPOSIT_SIZE:
+    if msg.value >= as_wei_value(DEPOSIT_SIZE, "ether"):
         self.total_deposit_count += 1
     if self.total_deposit_count == DEPOSITS_FOR_CHAIN_START:
         log.ChainStart(self.receipt_tree[1], timestamp_bytes8)