diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index 7dd6a71bf..e10d0c011 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -49,9 +49,9 @@
             - [`BeaconState`](#beaconstate)
     - [Helper functions](#helper-functions)
         - [Math](#math)
+            - [`int_to_bytes`](#int_to_bytes)
             - [`integer_squareroot`](#integer_squareroot)
             - [`xor`](#xor)
-            - [`int_to_bytes`](#int_to_bytes)
             - [`bytes_to_int`](#bytes_to_int)
         - [Crypto](#crypto)
             - [`hash`](#hash)
@@ -65,7 +65,7 @@
             - [`is_slashable_validator`](#is_slashable_validator)
             - [`is_slashable_attestation_data`](#is_slashable_attestation_data)
             - [`is_valid_merkle_branch`](#is_valid_merkle_branch)
-        - [Misc](#misc)
+        - [Misc](#misc-1)
             - [`shuffle_index`](#shuffle_index)
             - [`compute_committee`](#compute_committee)
             - [`validate_indexed_attestation`](#validate_indexed_attestation)
@@ -90,6 +90,7 @@
             - [`get_attestation_data_slot`](#get_attestation_data_slot)
             - [`get_compact_committees_root`](#get_compact_committees_root)
             - [`get_total_balance`](#get_total_balance)
+            - [`get_total_active_balance`](#get_total_active_balance)
             - [`get_domain`](#get_domain)
             - [`get_indexed_attestation`](#get_indexed_attestation)
             - [`get_attesting_indices`](#get_attesting_indices)