diff --git a/cmd/evm/main.go b/cmd/evm/main.go
index 2bdfdfa9f..66bba7289 100644
--- a/cmd/evm/main.go
+++ b/cmd/evm/main.go
@@ -37,8 +37,8 @@ import (
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/logger"
+	"github.com/ethereum/go-ethereum/ptrie"
 	"github.com/ethereum/go-ethereum/state"
-	"github.com/ethereum/go-ethereum/trie"
 	"github.com/ethereum/go-ethereum/vm"
 )
 
@@ -65,7 +65,7 @@ func main() {
 	ethutil.ReadConfig("/tmp/evmtest", "/tmp/evm", "")
 
 	db, _ := ethdb.NewMemDatabase()
-	statedb := state.New(trie.New(db, ""))
+	statedb := state.New(ptrie.New(nil, db))
 	sender := statedb.NewStateObject([]byte("sender"))
 	receiver := statedb.NewStateObject([]byte("receiver"))
 	//receiver.SetCode([]byte(*code))
diff --git a/tests/helper/trie.go b/tests/helper/trie.go
index 32432cc7a..3cfb0bbe5 100644
--- a/tests/helper/trie.go
+++ b/tests/helper/trie.go
@@ -1,6 +1,6 @@
 package helper
 
-import "github.com/ethereum/go-ethereum/trie"
+import "github.com/ethereum/go-ethereum/ptrie"
 
 type MemDatabase struct {
 	db map[string][]byte
@@ -24,8 +24,8 @@ func (db *MemDatabase) Print()              {}
 func (db *MemDatabase) Close()              {}
 func (db *MemDatabase) LastKnownTD() []byte { return nil }
 
-func NewTrie() *trie.Trie {
+func NewTrie() *ptrie.Trie {
 	db, _ := NewMemDatabase()
 
-	return trie.New(db, "")
+	return ptrie.New(nil, db)
 }