diff --git a/core/genesis.go b/core/genesis.go
index 7d640c8cae..9fb9cb9d2d 100644
--- a/core/genesis.go
+++ b/core/genesis.go
@@ -377,11 +377,6 @@ func SetupGenesisBlockWithOverride(db ethdb.Database, triedb *triedb.Database, g
 		return nil, common.Hash{}, nil, err
 	}
 
-	// Sanity-check the new configuration.
-	if err := newCfg.CheckConfigForkOrder(); err != nil {
-		return nil, common.Hash{}, nil, err
-	}
-
 	// TODO(rjl493456442) better to define the comparator of chain config
 	// and short circuit if the chain config is not changed.
 	compatErr := storedCfg.CheckCompatible(newCfg, head.Number.Uint64(), head.Time)