diff --git a/beacon-chain/sync/validate_proposer_slashing_test.go b/beacon-chain/sync/validate_proposer_slashing_test.go
index 5cadaf256..1e9bb85d9 100644
--- a/beacon-chain/sync/validate_proposer_slashing_test.go
+++ b/beacon-chain/sync/validate_proposer_slashing_test.go
@@ -12,6 +12,7 @@ import (
 	pubsub "github.com/libp2p/go-libp2p-pubsub"
 	pubsubpb "github.com/libp2p/go-libp2p-pubsub/pb"
 	ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
+	"github.com/prysmaticlabs/go-bitfield"
 	mock "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
 	"github.com/prysmaticlabs/prysm/beacon-chain/p2p"
@@ -169,7 +170,14 @@ func TestValidateProposerSlashing_ContextTimeout(t *testing.T) {
 
 	slashing, state := setupValidProposerSlashing(t)
 	slashing.Header_1.Header.Slot = 100000000
-
+	err := state.SetJustificationBits(bitfield.Bitvector4{0x0F}) // 0b1111
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = state.SetPreviousJustifiedCheckpoint(&ethpb.Checkpoint{Epoch: 0, Root: []byte{}})
+	if err != nil {
+		t.Fatal(err)
+	}
 	ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
 	defer cancel()