diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index 887ae6802..ba5b591d1 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -1298,11 +1298,13 @@ def process_justification_and_finalization(state: BeaconState) -> None:
     state.justification_bits[0] = 0b0
     matching_target_attestations = get_matching_target_attestations(state, previous_epoch)  # Previous epoch
     if get_attesting_balance(state, matching_target_attestations) * 3 >= get_total_active_balance(state) * 2:
-        state.current_justified_checkpoint = Checkpoint(epoch=previous_epoch, root=get_block_root(state, previous_epoch))
+        state.current_justified_checkpoint = Checkpoint(epoch=previous_epoch,
+                                                        root=get_block_root(state, previous_epoch))
         state.justification_bits[1] = 0b1
     matching_target_attestations = get_matching_target_attestations(state, current_epoch)  # Current epoch
     if get_attesting_balance(state, matching_target_attestations) * 3 >= get_total_active_balance(state) * 2:
-        state.current_justified_checkpoint = Checkpoint(epoch=current_epoch, root=get_block_root(state, current_epoch))
+        state.current_justified_checkpoint = Checkpoint(epoch=current_epoch,
+                                                        root=get_block_root(state, current_epoch))
         state.justification_bits[0] = 0b1
 
     # Process finalizations