diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index 3da520300..6a4ac6ce5 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -774,7 +774,6 @@ def get_shuffling(seed: Bytes32,
     committees_per_epoch = get_epoch_committee_count(len(active_validator_indices))
 
     # Shuffle
-    shuffled_indices = shuffle(len(active_validator_indices), seed)
     shuffled_active_validator_indices = [
         active_validator_indices[i]
         for i in shuffle(len(active_validator_indices), seed)