diff --git a/types/mapper/annotation_field.go b/types/mapper/annotation_field.go
index 4ff8852d..821621a3 100644
--- a/types/mapper/annotation_field.go
+++ b/types/mapper/annotation_field.go
@@ -11,6 +11,7 @@ import (
 type AnnotationField struct {
 	Field            string
 	Object           bool
+	List             bool
 	IgnoreDefinition bool
 }
 
@@ -24,6 +25,12 @@ func (e AnnotationField) FromInternal(data map[string]interface{}) {
 				v = data
 			}
 		}
+		if e.List {
+			var data []interface{}
+			if err := json.Unmarshal([]byte(convert.ToString(v)), &data); err == nil {
+				v = data
+			}
+		}
 
 		data[e.Field] = v
 	}
@@ -32,7 +39,7 @@ func (e AnnotationField) FromInternal(data map[string]interface{}) {
 func (e AnnotationField) ToInternal(data map[string]interface{}) {
 	v, ok := data[e.Field]
 	if ok {
-		if e.Object {
+		if e.Object || e.List {
 			if bytes, err := json.Marshal(v); err == nil {
 				v = string(bytes)
 			}