diff --git a/metadata_test.go b/metadata_test.go
index 9752a99..7f93e83 100644
--- a/metadata_test.go
+++ b/metadata_test.go
@@ -49,5 +49,5 @@ func TestMetadataV15DecoderProcess(t *testing.T) {
 	if m.Version != "MetadataV15Decoder" {
 		t.Errorf("MetadataV15version should equal 15")
 	}
-	utiles.Debug(m.Metadata)
+	// utiles.Debug(m.Metadata)
 }
diff --git a/types/base.go b/types/base.go
index a51ba4e..11f3611 100644
--- a/types/base.go
+++ b/types/base.go
@@ -211,7 +211,7 @@ func EncodeWithOpt(typeString string, data interface{}, opt *ScaleDecoderOption)
 	}
 	out := value.MethodByName("Encode").Call([]reflect.Value{val})
 	if len(out) > 0 {
-		return strings.ToLower(out[0].String())
+		return utiles.TrimHex(strings.ToLower(out[0].String()))
 	}
 	return ""
 }
diff --git a/types/types.go b/types/types.go
index be22a68..af33a31 100644
--- a/types/types.go
+++ b/types/types.go
@@ -182,7 +182,7 @@ type AccountId struct {
 }
 
 func (s *AccountId) Process() {
-	s.Value = xstrings.RightJustify(utiles.BytesToHex(s.NextBytes(32)), 64, "0")
+	s.Value = utiles.AddHex(xstrings.RightJustify(utiles.BytesToHex(s.NextBytes(32)), 64, "0"))
 }
 
 func (s *AccountId) Encode(value string) string {
diff --git a/types/types_test.go b/types/types_test.go
index 3a2fefc..e3d038c 100644
--- a/types/types_test.go
+++ b/types/types_test.go
@@ -317,7 +317,7 @@ func TestEncode(t *testing.T) {
 	assert.Equal(t, "070736c8230a", Encode("compact<u128>", decimal.New(43549996551, 0)))
 	assert.Equal(t, "87d61200000000000000000000000000", Encode("U128", decimal.NewFromInt32(1234567)))
 	assert.Equal(t, "47a952404f2b1568e6881efeb58c8918", Encode("U128", decimal.RequireFromString("32615670524745285411807346420584982855")))
-	assert.Equal(t, "0x9a5b8a1b7bca89cdb3931d8ee71aa468081d971c", Encode("H160", "0x9a5b8a1B7Bca89CDB3931D8eE71AA468081D971c"))
+	assert.Equal(t, "9a5b8a1b7bca89cdb3931d8ee71aa468081d971c", Encode("H160", "0x9a5b8a1B7Bca89CDB3931D8eE71AA468081D971c"))
 }
 
 func TestSubstrateFixedU64(t *testing.T) {