diff --git a/tests/block_test_util.go b/tests/block_test_util.go
index 64e1c551f1..97785e9ee0 100644
--- a/tests/block_test_util.go
+++ b/tests/block_test_util.go
@@ -27,7 +27,7 @@ import (
 	"github.com/ubiq/go-ubiq/common"
 	"github.com/ubiq/go-ubiq/common/hexutil"
 	"github.com/ubiq/go-ubiq/common/math"
-	"github.com/ubiq/go-ubiq/consensus/ethash"
+	"github.com/ubiq/go-ubiq/consensus/ubqhash"
 	"github.com/ubiq/go-ubiq/core"
 	"github.com/ubiq/go-ubiq/core/state"
 	"github.com/ubiq/go-ubiq/core/types"
@@ -105,7 +105,7 @@ func (t *BlockTest) Run(config *params.ChainConfig) error {
 		return fmt.Errorf("genesis block state root does not match test: computed=%x, test=%x", gblock.Root().Bytes()[:6], t.json.Genesis.StateRoot[:6])
 	}
 
-	chain, err := core.NewBlockChain(db, config, ethash.NewShared(), new(event.TypeMux), vm.Config{})
+	chain, err := core.NewBlockChain(db, config, ubqhash.NewShared(), new(event.TypeMux), vm.Config{})
 	if err != nil {
 		return err
 	}