From c5158e297494dcae1c992fe592121698bd1c2176 Mon Sep 17 00:00:00 2001
From: Paul Hauner <paul@paulhauner.com>
Date: Sat, 16 Feb 2019 15:08:57 +1100
Subject: [PATCH] Fix bug with total_balance in epoch processing

---
 eth2/state_processing/src/epoch_processable.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/eth2/state_processing/src/epoch_processable.rs b/eth2/state_processing/src/epoch_processable.rs
index 80318914c5..a930cd750c 100644
--- a/eth2/state_processing/src/epoch_processable.rs
+++ b/eth2/state_processing/src/epoch_processable.rs
@@ -144,8 +144,10 @@ impl EpochProcessable for BeaconState {
 
         let previous_epoch_attester_indices =
             self.get_attestation_participants_union(&previous_epoch_attestations[..], spec)?;
-        let previous_total_balance =
-            self.get_total_balance(&previous_epoch_attester_indices[..], spec);
+        let previous_total_balance = self.get_total_balance(
+            &get_active_validator_indices(&self.validator_registry, previous_epoch),
+            spec,
+        );
 
         /*
          * Validators targetting the previous justified slot