diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index 5aa9f1aea..9e466ba0d 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -421,8 +421,6 @@ Unless otherwise indicated, code appearing in `this style` is to be interpreted
 
 #### `BeaconBlockBody`
 
-`ProofOfCustodySeedChange`, `ProofOfCustodyChallenge`, and `ProofOfCustodyResponse` will be defined in phase 1; for now, put dummy classes as these lists will remain empty throughout phase 0.
-
 ```python
 {
     'proposer_slashings': [ProposerSlashing],
@@ -436,6 +434,8 @@ Unless otherwise indicated, code appearing in `this style` is to be interpreted
 }
 ```
 
+`ProofOfCustodySeedChange`, `ProofOfCustodyChallenge`, and `ProofOfCustodyResponse` will be defined in phase 1; for now, put dummy classes as these lists will remain empty throughout phase 0.
+
 #### `ProposalSignedData`
 
 ```python