diff --git a/core/eip3529tests/eip3529_parlia_test.go b/core/eip3529tests/eip3529_parlia_test.go
index f759a8f880..517b39d057 100644
--- a/core/eip3529tests/eip3529_parlia_test.go
+++ b/core/eip3529tests/eip3529_parlia_test.go
@@ -19,6 +19,7 @@ func preHertzConfig() *params.ChainConfig {
 	config.LondonBlock = nil
 	config.BerlinBlock = nil
 	config.HertzBlock = nil
+	config.HertzfixBlock = nil
 	return &config
 }
 
diff --git a/eth/gasprice/gasprice_test.go b/eth/gasprice/gasprice_test.go
index f2a0eb68fd..cf2e746e11 100644
--- a/eth/gasprice/gasprice_test.go
+++ b/eth/gasprice/gasprice_test.go
@@ -139,6 +139,7 @@ func newTestBackend(t *testing.T, londonBlock *big.Int, pending bool) *testBacke
 	config.LubanBlock = nil
 	config.PlatoBlock = nil
 	config.HertzBlock = nil
+	config.HertzfixBlock = nil
 	engine := ethash.NewFaker()
 	db := rawdb.NewMemoryDatabase()
 	genesis, err := gspec.Commit(db)