diff --git a/consensus/bor/bor.go b/consensus/bor/bor.go
index a622f0d7d0..8b9cfc7fb7 100644
--- a/consensus/bor/bor.go
+++ b/consensus/bor/bor.go
@@ -577,7 +577,7 @@ func (c *Bor) verifySeal(chain consensus.ChainReader, header *types.Header, pare
 	}
 	proposerIndex, _ := snap.ValidatorSet.GetByAddress(proposer)
 	signerIndex, _ := snap.ValidatorSet.GetByAddress(signer)
-	limit := len(validators) - (len(validators)/2 + 1)
+	limit := len(validators)/2 + 1
 
 	// temp index
 	tempIndex := signerIndex
@@ -761,7 +761,7 @@ func (c *Bor) Seal(chain consensus.ChainReader, block *types.Block, results chan
 
 	proposerIndex, _ := snap.ValidatorSet.GetByAddress(proposer)
 	signerIndex, _ := snap.ValidatorSet.GetByAddress(signer)
-	limit := len(validators) - (len(validators)/2 + 1)
+	limit := len(validators)/2 + 1
 
 	// temp index
 	tempIndex := signerIndex
diff --git a/consensus/bor/snapshot.go b/consensus/bor/snapshot.go
index 9d41d7f3fb..dc78a4ca1e 100644
--- a/consensus/bor/snapshot.go
+++ b/consensus/bor/snapshot.go
@@ -164,7 +164,7 @@ func (s *Snapshot) apply(headers []*types.Header) (*Snapshot, error) {
 		proposer := snap.ValidatorSet.GetProposer().Address
 		proposerIndex, _ := snap.ValidatorSet.GetByAddress(proposer)
 		signerIndex, _ := snap.ValidatorSet.GetByAddress(signer)
-		limit := len(validators) - (len(validators)/2 + 1)
+		limit := len(validators)/2 + 1
 
 		// temp index
 		tempIndex := signerIndex