diff --git a/txpool/packets.go b/txpool/packets.go
index fc1a7f6ba..b22bf98b4 100644
--- a/txpool/packets.go
+++ b/txpool/packets.go
@@ -181,11 +181,6 @@ func ParsePooledTransactions65(payload []byte, pos int, ctx *TxParseContext, txS
 		return 0, err
 	}
 
-	for i := range txSlots.txs {
-		if txSlots.txs[i] == nil {
-			txSlots.txs[i] = &TxSlot{}
-		}
-	}
 	for i := 0; pos != len(payload); i++ {
 		txSlots.Growth(i)
 		pos, err = ctx.ParseTransaction(payload, pos, txSlots.txs[i], txSlots.senders.At(i))
@@ -210,11 +205,6 @@ func ParsePooledTransactions66(payload []byte, pos int, ctx *TxParseContext, txS
 		return requestID, 0, err
 	}
 
-	for i := range txSlots.txs {
-		if txSlots.txs[i] == nil {
-			txSlots.txs[i] = &TxSlot{}
-		}
-	}
 	for i := 0; pos != len(payload); i++ {
 		txSlots.Growth(i)
 		pos, err = ctx.ParseTransaction(payload, pos, txSlots.txs[i], txSlots.senders.At(i))
diff --git a/txpool/types.go b/txpool/types.go
index 9ca5d40d2..e39eb6f77 100644
--- a/txpool/types.go
+++ b/txpool/types.go
@@ -115,6 +115,9 @@ func (s *TxSlots) Growth(targetSize int) {
 	for s.senders.Len() < targetSize {
 		s.senders = append(s.senders, addressesGrowth...)
 	}
+	for i := len(s.txs) - 1; i >= 0 && s.txs[i] == nil; i-- {
+		s.txs[i] = &TxSlot{}
+	}
 }
 
 const (
diff --git a/txpool/types_test.go b/txpool/types_test.go
index 549e90099..0c7336fe3 100644
--- a/txpool/types_test.go
+++ b/txpool/types_test.go
@@ -97,15 +97,19 @@ func TestTxSlotsGrowth(t *testing.T) {
 	s.Growth(11)
 	assert.Equal(11, len(s.txs))
 	assert.Equal(11, s.senders.Len())
+	assert.NotNil(s.txs[0])
 	s.Growth(23)
 	assert.Equal(23, len(s.txs))
 	assert.Equal(23, s.senders.Len())
+	assert.NotNil(s.txs[12])
 
 	s = &TxSlots{txs: make([]*TxSlot, 20), senders: make(Addresses, 20*20)}
 	s.Growth(20)
 	assert.Equal(20, len(s.txs))
 	assert.Equal(20, s.senders.Len())
+	assert.NotNil(s.txs[0])
 	s.Growth(23)
 	assert.Equal(23, len(s.txs))
 	assert.Equal(23, s.senders.Len())
+	assert.NotNil(s.txs[21])
 }