diff --git a/lib/task.js b/lib/task.js
index 6519a528..5078ef04 100644
--- a/lib/task.js
+++ b/lib/task.js
@@ -26,7 +26,7 @@ const {
  * @param {} obj
  * @return
  */
-const DATE_META_KEYS = ['due', 'created', 'remind', 'completed']
+const DATE_META_KEYS = ['due', 'defer', 'created', 'remind', 'completed']
 class Task {
   constructor(config, obj, dontParse) {
     if (!_isObject(obj)) throw new Error('obj must be an Object')