diff --git a/specs/_features/eip7251/beacon-chain.md b/specs/_features/eip7251/beacon-chain.md
index 51d11d2cd..70a565739 100644
--- a/specs/_features/eip7251/beacon-chain.md
+++ b/specs/_features/eip7251/beacon-chain.md
@@ -490,7 +490,8 @@ def slash_validator(state: BeaconState,
     proposer_index = get_beacon_proposer_index(state)
     if whistleblower_index is None:
         whistleblower_index = proposer_index
-    whistleblower_reward = Gwei(validator.effective_balance // WHISTLEBLOWER_REWARD_QUOTIENT_EIP7251)  # [Modified in EIP7251]
+    whistleblower_reward = Gwei(
+        validator.effective_balance // WHISTLEBLOWER_REWARD_QUOTIENT_EIP7251)  # [Modified in EIP7251]
     proposer_reward = Gwei(whistleblower_reward * PROPOSER_WEIGHT // WEIGHT_DENOMINATOR)
     increase_balance(state, proposer_index, proposer_reward)
     increase_balance(state, whistleblower_index, Gwei(whistleblower_reward - proposer_reward))