diff --git a/specs/validator/0_beacon-chain-validator.md b/specs/validator/0_beacon-chain-validator.md
index b8db2117c..744df690f 100644
--- a/specs/validator/0_beacon-chain-validator.md
+++ b/specs/validator/0_beacon-chain-validator.md
@@ -7,53 +7,53 @@ __NOTICE__: This document is a work-in-progress for researchers and implementers
 <!-- TOC -->
 
 - [Ethereum 2.0 Phase 0 -- Honest Validator](#ethereum-20-phase-0----honest-validator)
-  - [Table of Contents](#table-of-contents)
-  - [Introduction](#introduction)
-  - [Prerequisites](#prerequisites)
-  - [Constants](#constants)
-    - [Misc](#misc)
-  - [Becoming a validator](#becoming-a-validator)
-    - [Initialization](#initialization)
-      - [BLS public key](#bls-public-key)
-      - [BLS withdrawal key](#bls-withdrawal-key)
-    - [Submit deposit](#submit-deposit)
-    - [Process deposit](#process-deposit)
-    - [Validator index](#validator-index)
-    - [Activation](#activation)
-  - [Beacon chain responsibilities](#beacon-chain-responsibilities)
-    - [Block proposal](#block-proposal)
-      - [Block header](#block-header)
-        - [Slot](#slot)
-        - [Parent root](#parent-root)
-        - [State root](#state-root)
-        - [Randao reveal](#randao-reveal)
-        - [Eth1 Data](#eth1-data)
-        - [Signature](#signature)
-      - [Block body](#block-body)
-        - [Proposer slashings](#proposer-slashings)
-        - [Attester slashings](#attester-slashings)
-        - [Attestations](#attestations)
-        - [Deposits](#deposits)
-        - [Exits](#exits)
-    - [Attestations](#attestations-1)
-      - [Attestation data](#attestation-data)
-        - [Slot](#slot-1)
-        - [Shard](#shard)
-        - [Beacon block root](#beacon-block-root)
-        - [Epoch boundary root](#epoch-boundary-root)
-        - [Shard block root](#shard-block-root)
-        - [Latest crosslink root](#latest-crosslink-root)
-        - [Justified epoch](#justified-epoch)
-        - [Justified block root](#justified-block-root)
-      - [Construct attestation](#construct-attestation)
-        - [Data](#data)
-        - [Aggregation bitfield](#aggregation-bitfield)
-        - [Custody bitfield](#custody-bitfield)
-        - [Aggregate signature](#aggregate-signature)
-  - [Responsibility lookahead](#responsibility-lookahead)
-  - [How to avoid slashing](#how-to-avoid-slashing)
-    - [Proposer slashing](#proposer-slashing)
-    - [Attester slashing](#attester-slashing)
+    - [Table of Contents](#table-of-contents)
+    - [Introduction](#introduction)
+    - [Prerequisites](#prerequisites)
+    - [Constants](#constants)
+        - [Misc](#misc)
+    - [Becoming a validator](#becoming-a-validator)
+        - [Initialization](#initialization)
+            - [BLS public key](#bls-public-key)
+            - [BLS withdrawal key](#bls-withdrawal-key)
+        - [Submit deposit](#submit-deposit)
+        - [Process deposit](#process-deposit)
+        - [Validator index](#validator-index)
+        - [Activation](#activation)
+    - [Beacon chain responsibilities](#beacon-chain-responsibilities)
+        - [Block proposal](#block-proposal)
+            - [Block header](#block-header)
+                - [Slot](#slot)
+                - [Parent root](#parent-root)
+                - [State root](#state-root)
+                - [Randao reveal](#randao-reveal)
+                - [Eth1 Data](#eth1-data)
+                - [Signature](#signature)
+            - [Block body](#block-body)
+                - [Proposer slashings](#proposer-slashings)
+                - [Attester slashings](#attester-slashings)
+                - [Attestations](#attestations)
+                - [Deposits](#deposits)
+                - [Exits](#exits)
+        - [Attestations](#attestations-1)
+            - [Attestation data](#attestation-data)
+                - [Slot](#slot-1)
+                - [Shard](#shard)
+                - [Beacon block root](#beacon-block-root)
+                - [Epoch boundary root](#epoch-boundary-root)
+                - [Shard block root](#shard-block-root)
+                - [Latest crosslink root](#latest-crosslink-root)
+                - [Justified epoch](#justified-epoch)
+                - [Justified block root](#justified-block-root)
+            - [Construct attestation](#construct-attestation)
+                - [Data](#data)
+                - [Aggregation bitfield](#aggregation-bitfield)
+                - [Custody bitfield](#custody-bitfield)
+                - [Aggregate signature](#aggregate-signature)
+    - [Responsibility lookahead](#responsibility-lookahead)
+    - [How to avoid slashing](#how-to-avoid-slashing)
+        - [Proposer slashing](#proposer-slashing)
+        - [Attester slashing](#attester-slashing)
 
 <!-- /TOC -->