diff --git a/beacon-chain/core/blocks/block_operations.go b/beacon-chain/core/blocks/block_operations.go
index aff03b829..2b6863685 100644
--- a/beacon-chain/core/blocks/block_operations.go
+++ b/beacon-chain/core/blocks/block_operations.go
@@ -20,6 +20,7 @@ import (
 	"github.com/prysmaticlabs/prysm/shared/bls"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
 	"github.com/prysmaticlabs/prysm/shared/forkutils"
+	"github.com/prysmaticlabs/prysm/shared/hashutil"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/shared/trieutil"
 )
@@ -94,7 +95,8 @@ func ProcessBlockRandao(beaconState *pb.BeaconState, block *pb.BeaconBlock, veri
 	latestMixesLength := params.BeaconConfig().LatestRandaoMixesLength
 	currentEpoch := helpers.CurrentEpoch(beaconState)
 	latestMixSlice := beaconState.LatestRandaoMixes[currentEpoch%latestMixesLength]
-	for i, x := range block.RandaoReveal {
+	blockRandaoReveal := hashutil.Hash(block.RandaoReveal)
+	for i, x := range blockRandaoReveal {
 		latestMixSlice[i] ^= x
 	}
 	beaconState.LatestRandaoMixes[currentEpoch%latestMixesLength] = latestMixSlice
diff --git a/beacon-chain/core/blocks/block_operations_test.go b/beacon-chain/core/blocks/block_operations_test.go
index 11bfa59e9..6edfe248f 100644
--- a/beacon-chain/core/blocks/block_operations_test.go
+++ b/beacon-chain/core/blocks/block_operations_test.go
@@ -106,7 +106,8 @@ func TestProcessBlockRandao_SignatureVerifiesAndUpdatesLatestStateMixes(t *testi
 	}
 	currentEpoch := helpers.CurrentEpoch(beaconState)
 	mix := newState.LatestRandaoMixes[currentEpoch%params.BeaconConfig().LatestRandaoMixesLength]
-	if bytes.Equal(mix, params.BeaconConfig().EmptySignature[:]) {
+
+	if bytes.Equal(mix, params.BeaconConfig().ZeroHash[:]) {
 		t.Errorf(
 			"Expected empty signature to be overwritten by randao reveal, received %v",
 			params.BeaconConfig().EmptySignature,
diff --git a/beacon-chain/core/state/state.go b/beacon-chain/core/state/state.go
index 1f85929d7..2df50ea45 100644
--- a/beacon-chain/core/state/state.go
+++ b/beacon-chain/core/state/state.go
@@ -28,8 +28,7 @@ func GenesisBeaconState(
 		params.BeaconConfig().LatestRandaoMixesLength,
 	)
 	for i := 0; i < len(latestRandaoMixes); i++ {
-		emptySig := params.BeaconConfig().EmptySignature
-		latestRandaoMixes[i] = emptySig[:]
+		latestRandaoMixes[i] = make([]byte, 32)
 	}
 
 	zeroHash := params.BeaconConfig().ZeroHash[:]