diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index e4a1b1b23..d8eaa2547 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -311,7 +311,6 @@ The following data structures are defined as [SimpleSerialize (SSZ)](https://git
 {
     # Validator indices
     'validator_indices': ['uint64'],
-    # Custody bitfield
     # Attestation data
     'data': AttestationData,
     # Custody bitfield