diff --git a/specs/altair/beacon-chain.md b/specs/altair/beacon-chain.md
index 2e1d2d070..0e7be47e3 100644
--- a/specs/altair/beacon-chain.md
+++ b/specs/altair/beacon-chain.md
@@ -267,7 +267,8 @@ def has_flag(flags: ParticipationFlags, flag_index: int) -> bool:
 ```python
 def get_sync_committee_indices(state: BeaconState, epoch: Epoch) -> Sequence[ValidatorIndex]:
     """
-    Return the sequence of sync committee indices (which may include duplicate indices) for a given ``state`` and ``epoch``.
+    Return the sequence of sync committee indices (which may include duplicate indices)
+    for a given ``state`` and ``epoch``.
     """
     MAX_RANDOM_BYTE = 2**8 - 1
     base_epoch = Epoch((max(epoch // EPOCHS_PER_SYNC_COMMITTEE_PERIOD, 1) - 1) * EPOCHS_PER_SYNC_COMMITTEE_PERIOD)