diff --git a/core/blockchain_test.go b/core/blockchain_test.go
index 1b4b569575..b5b9ff4e48 100644
--- a/core/blockchain_test.go
+++ b/core/blockchain_test.go
@@ -36,7 +36,6 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/eth/tracers/logger"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/trie"
@@ -3024,7 +3023,7 @@ func TestDeleteRecreateSlots(t *testing.T) {
 	})
 	// Import the canonical chain
 	chain, err := NewBlockChain(rawdb.NewMemoryDatabase(), nil, gspec, nil, engine, vm.Config{
-		Tracer: logger.NewJSONLogger(nil, os.Stdout),
+		//Tracer: logger.NewJSONLogger(nil, os.Stdout),
 	}, nil, nil)
 	if err != nil {
 		t.Fatalf("failed to create tester chain: %v", err)
@@ -3101,7 +3100,7 @@ func TestDeleteRecreateAccount(t *testing.T) {
 	})
 	// Import the canonical chain
 	chain, err := NewBlockChain(rawdb.NewMemoryDatabase(), nil, gspec, nil, engine, vm.Config{
-		Tracer: logger.NewJSONLogger(nil, os.Stdout),
+		//Tracer: logger.NewJSONLogger(nil, os.Stdout),
 	}, nil, nil)
 	if err != nil {
 		t.Fatalf("failed to create tester chain: %v", err)
@@ -4307,7 +4306,7 @@ func TestEIP3651(t *testing.T) {
 
 		b.AddTx(tx)
 	})
-	chain, err := NewBlockChain(rawdb.NewMemoryDatabase(), nil, gspec, nil, engine, vm.Config{Tracer: logger.NewMarkdownLogger(&logger.Config{}, os.Stderr)}, nil, nil)
+	chain, err := NewBlockChain(rawdb.NewMemoryDatabase(), nil, gspec, nil, engine, vm.Config{ /*Tracer: logger.NewMarkdownLogger(&logger.Config{}, os.Stderr)*/ }, nil, nil)
 	if err != nil {
 		t.Fatalf("failed to create tester chain: %v", err)
 	}