diff --git a/encoding/json/json.go b/encoding/json/json.go
index d5f0009..22893b3 100644
--- a/encoding/json/json.go
+++ b/encoding/json/json.go
@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"reflect"
 
-	cr "github.com/corpix/reflect"
+	our "git.loafle.net/overflow/util-go/reflect"
 )
 
 // SetValueWithJSONStringArray set the value of json string array
@@ -41,7 +41,7 @@ func SetValueWithJSONStringArray(values []string, targets []interface{}) error {
 		case reflect.Ptr:
 			return fmt.Errorf("Type of target[%d] cannot be double ptr, value=%s", indexI, value)
 		default:
-			cv, err := cr.ConvertToType(value, reflect.TypeOf(target).Elem())
+			cv, err := our.ConvertToType(value, reflect.TypeOf(target).Elem())
 			if nil != err {
 				return fmt.Errorf("Type conversion of value[%s] has been failed to %s[%d]", value, reflect.TypeOf(target).Elem().Kind(), indexI)
 			}
diff --git a/reflect/convert.go b/reflect/convert.go
index 3be00c6..be6b7d3 100644
--- a/reflect/convert.go
+++ b/reflect/convert.go
@@ -5,7 +5,7 @@ import (
 	"strconv"
 )
 
-func ConvertToType(v interface{}, t reflect.Type) (interface{}, error) {
+func ConvertToType(v interface{}, t Type) (interface{}, error) {
 	var (
 		tt  = reflect.TypeOf(v)
 		vv  = reflect.ValueOf(v)
@@ -47,8 +47,11 @@ func ConvertToType(v interface{}, t reflect.Type) (interface{}, error) {
 		switch t.Kind() {
 		case Map:
 			var (
-				res = reflect.MakeMapWithSize(t, len(vv.MapKeys()))
-				ck  interface{}
+				res = reflect.MakeMapWithSize(
+					t,
+					vv.Len(),
+				)
+				ck interface{}
 			)
 			for _, k := range vv.MapKeys() {
 				ck, err = ConvertToType(
diff --git a/reflect/error.go b/reflect/error.go
index 117d18a..b305cbd 100644
--- a/reflect/error.go
+++ b/reflect/error.go
@@ -2,14 +2,13 @@ package reflect
 
 import (
 	"fmt"
-	"reflect"
 	"strings"
 )
 
 type ErrCanNotConvertType struct {
 	value  interface{}
-	from   reflect.Type
-	to     reflect.Type
+	from   Type
+	to     Type
 	reason []string
 }
 
@@ -31,7 +30,7 @@ func (e ErrCanNotConvertType) Error() string {
 	)
 }
 
-func NewErrCanNotConvertType(value interface{}, from reflect.Type, to reflect.Type, reason ...string) ErrCanNotConvertType {
+func NewErrCanNotConvertType(value interface{}, from Type, to Type, reason ...string) ErrCanNotConvertType {
 	return ErrCanNotConvertType{
 		value:  value,
 		from:   from,
diff --git a/reflect/indirect.go b/reflect/indirect.go
index 8156141..6fb18ad 100644
--- a/reflect/indirect.go
+++ b/reflect/indirect.go
@@ -12,14 +12,14 @@ func Indirect(v interface{}) interface{} {
 	return IndirectValue(reflect.ValueOf(v)).Interface()
 }
 
-func IndirectValue(reflectValue reflect.Value) reflect.Value {
+func IndirectValue(reflectValue Value) Value {
 	if reflectValue.Kind() == reflect.Ptr {
 		return reflectValue.Elem()
 	}
 	return reflectValue
 }
 
-func IndirectType(reflectType reflect.Type) reflect.Type {
+func IndirectType(reflectType Type) Type {
 	if reflectType == TypeInvalid {
 		return TypeInvalid
 	}
diff --git a/reflect/type.go b/reflect/type.go
index 1e070c9..c262a95 100644
--- a/reflect/type.go
+++ b/reflect/type.go
@@ -8,8 +8,10 @@ var (
 	TypeOf = reflect.TypeOf
 )
 
+type Type = reflect.Type
+
 var (
-	Types = []reflect.Type{
+	Types = []Type{
 		TypeBool,
 		TypeInt,
 		TypeInt8,
@@ -29,7 +31,7 @@ var (
 		TypeString,
 	}
 
-	TypeInvalid    = reflect.Type(nil)
+	TypeInvalid    = Type(nil)
 	TypeBool       = reflect.TypeOf(false)
 	TypeInt        = reflect.TypeOf(int(0))
 	TypeInt8       = reflect.TypeOf(int8(0))
diff --git a/reflect/value.go b/reflect/value.go
new file mode 100644
index 0000000..8319055
--- /dev/null
+++ b/reflect/value.go
@@ -0,0 +1,11 @@
+package reflect
+
+import (
+	"reflect"
+)
+
+var (
+	ValueOf = reflect.ValueOf
+)
+
+type Value = reflect.Value