diff --git a/lib/mysql.js b/lib/mysql.js
index 7f3f6f1..1918be2 100644
--- a/lib/mysql.js
+++ b/lib/mysql.js
@@ -372,7 +372,8 @@ MySQL.prototype.toColumnValue = function(prop, val) {
     if (!val.toUTCString) {
       val = new Date(val);
     }
-    return dateToMysql(val, this.tzOffset); // arsis 2017-03-21 add tzOffset
+    val = dateToMysql(val, this.tzOffset); // arsis 2017-03-21 add tzOffset
+    return val;
   }
   if (prop.type === Boolean) {
     return !!val;
--
libgit2 0.21.2