diff --git a/core/txpool/legacypool/legacypool.go b/core/txpool/legacypool/legacypool.go
index 9a1093554a..41c9a2fe50 100644
--- a/core/txpool/legacypool/legacypool.go
+++ b/core/txpool/legacypool/legacypool.go
@@ -609,9 +609,9 @@ func (pool *LegacyPool) validateTx(tx *types.Transaction) error {
 	return pool.validateAuth(tx)
 }
 
-// limitTxFromDelegated ensures the account with either delegation or pending
+// ensureDelegationLimit ensures the account with either delegation or pending
 // delegation can at most send one inflight **executable** transaction.
-func (pool *LegacyPool) limitTxFromDelegated(tx *types.Transaction) error {
+func (pool *LegacyPool) ensureDelegationLimit(tx *types.Transaction) error {
 	from, _ := types.Sender(pool.signer, tx) // validated
 
 	// Short circuit if the sender has neither delegation nor pending delegation.
@@ -630,10 +630,7 @@ func (pool *LegacyPool) limitTxFromDelegated(tx *types.Transaction) error {
 	if pending.Contains(tx.Nonce()) {
 		return nil
 	}
-	if pending.Len() >= 1 {
-		return ErrInflightTxLimitReached
-	}
-	return nil
+	return ErrInflightTxLimitReached
 }
 
 // validateAuth verifies that the transaction complies with code authorization
@@ -641,7 +638,7 @@ func (pool *LegacyPool) limitTxFromDelegated(tx *types.Transaction) error {
 func (pool *LegacyPool) validateAuth(tx *types.Transaction) error {
 	// Allow at most one in-flight tx for delegated accounts or those with a
 	// pending authorization.
-	if err := pool.limitTxFromDelegated(tx); err != nil {
+	if err := pool.ensureDelegationLimit(tx); err != nil {
 		return err
 	}
 	// Authorities cannot conflict with any pending or queued transactions.