diff --git a/lunar.js b/lunar.js
index 5143179..3753b85 100644
--- a/lunar.js
+++ b/lunar.js
@@ -2978,7 +2978,7 @@
               getIndex: function(){return this._p.index;},
               getLunar: function(){return this._p.lunar;},
               getGanZhi: function(){
-                var offset = LunarUtil.getJiaZiIndex(this._p.lunar.getYearInGanZhiExact()) + this._p.index;
+                var offset = LunarUtil.getJiaZiIndex(this._p.lunar.getJieQiTable()['立春'].getLunar().getYearInGanZhiExact()) + this._p.index;
                 if (this._p.daYun.getIndex() > 0) {
                   offset += this._p.daYun.getStartAge() - 1;
                 }
diff --git a/package.json b/package.json
index 50a9a55..599e8c4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lunar-javascript",
-  "version": "1.0.32",
+  "version": "1.0.33",
   "description": "lunar is a calendar library for Solar and Chinese Lunar.",
   "main": "index.js",
   "scripts": {