diff --git a/pkg/core/blockchain.go b/pkg/core/blockchain.go
index d9219c9f5..30fd0ee7d 100644
--- a/pkg/core/blockchain.go
+++ b/pkg/core/blockchain.go
@@ -547,7 +547,7 @@ func (bc *Blockchain) storeBlock(block *block.Block) error {
 			v.SetCheckedHash(tx.VerificationHash().BytesBE())
 			v.LoadScript(t.Script)
 			v.SetPriceGetter(getPrice)
-			if bc.config.FreeGasLimit >= 0 {
+			if bc.config.FreeGasLimit > 0 {
 				v.SetGasLimit(bc.config.FreeGasLimit + t.Gas)
 			}