diff --git a/wx.d.ts b/wx.d.ts
index 8c118c6..4340871 100644
--- a/wx.d.ts
+++ b/wx.d.ts
@@ -379,7 +379,7 @@ interface PageConstructor {
         /**
          * 页面相关事件处理函数--监听用户下拉动作
          */
-        onPullDownRefreash?: () => void;
+        onPullDownRefresh?: () => void;
         /**
          * 页面上拉触底事件的处理函数
          */
@@ -1623,4 +1623,4 @@ declare var wx: {
         complete?: Function;
     }): void;
                     
-}
\ No newline at end of file
+}