diff --git a/specs/phase0/beacon-chain.md b/specs/phase0/beacon-chain.md
index d1f97a506..2678a379f 100644
--- a/specs/phase0/beacon-chain.md
+++ b/specs/phase0/beacon-chain.md
@@ -1476,12 +1476,12 @@ def get_attestation_deltas(state: BeaconState) -> Tuple[Sequence[Gwei], Sequence
     _, inactivity_penalties = get_inactivity_penalty_deltas(state)
 
     rewards = [
-        source_rewards[i] + target_rewards[i] + head_rewards[i] + inclusion_delay_rewards[i]
+        Gwei(source_rewards[i] + target_rewards[i] + head_rewards[i] + inclusion_delay_rewards[i])
         for i in range(len(state.validators))
     ]
 
     penalties = [
-        source_penalties[i] + target_penalties[i] + head_penalties[i] + inactivity_penalties[i]
+        Gwei(source_penalties[i] + target_penalties[i] + head_penalties[i] + inactivity_penalties[i])
         for i in range(len(state.validators))
     ]
 
diff --git a/specs/phase0/validator.md b/specs/phase0/validator.md
index 630d42950..805498250 100644
--- a/specs/phase0/validator.md
+++ b/specs/phase0/validator.md
@@ -430,7 +430,7 @@ def compute_subnet_for_attestation(state: BeaconState, attestation: Attestation)
     slots_since_epoch_start = attestation.data.slot % SLOTS_PER_EPOCH
     committees_since_epoch_start = get_committee_count_at_slot(state, attestation.data.slot) * slots_since_epoch_start
 
-    return (committees_since_epoch_start + attestation.data.index) % ATTESTATION_SUBNET_COUNT
+    return uint64((committees_since_epoch_start + attestation.data.index) % ATTESTATION_SUBNET_COUNT)
 ```
 
 ### Attestation aggregation