diff --git a/pmcalendar.php b/pmcalendar.php
index 3f8fd0c..fcf2257 100644
--- a/pmcalendar.php
+++ b/pmcalendar.php
@@ -214,7 +214,7 @@ if ($act == 'newevent') {
         unset($yanqi_history[$idx]);
     }
 
-    $dict['yanqi_history']=json_encode($yanqi_history,true);
+    $dict['yanqi_history']=json_encode($yanqi_history);
     $sql = DB::update('calendar', $dict, "id='{$id}'");
     DB::exe($sql);
     we('1');