diff --git a/pkg/consensus/consensus.go b/pkg/consensus/consensus.go
index 1af47538d..12d8be085 100644
--- a/pkg/consensus/consensus.go
+++ b/pkg/consensus/consensus.go
@@ -580,7 +580,7 @@ func (s *service) getVerifiedTx() []block.Transaction {
 
 	var txx []*transaction.Transaction
 
-	if s.dbft.ViewNumber > 0 {
+	if s.dbft.ViewNumber > 0 && len(s.lastProposal) > 0 {
 		txx = make([]*transaction.Transaction, 0, len(s.lastProposal))
 		for i := range s.lastProposal {
 			if tx, ok := pool.TryGetValue(s.lastProposal[i]); ok {