diff --git a/core/genesis.go b/core/genesis.go
index b105cc7eac..f57fbfeff7 100644
--- a/core/genesis.go
+++ b/core/genesis.go
@@ -603,6 +603,7 @@ func (g *Genesis) MustCommit(db ethdb.Database, triedb *triedb.Database) *types.
 // GenesisBlockForTesting creates and writes a block in which addr has the given wei balance.
 func GenesisBlockForTesting(db ethdb.Database, addr common.Address, balance *big.Int) *types.Block {
 	g := Genesis{
+		Config:  params.BorTestChainConfig,
 		Alloc:   GenesisAlloc{addr: {Balance: balance}},
 		BaseFee: big.NewInt(params.InitialBaseFee),
 	}