diff --git a/x/src/main/java/com/yanzhenjie/recyclerview/SwipeMenuLayout.java b/x/src/main/java/com/yanzhenjie/recyclerview/SwipeMenuLayout.java
index 2d7e2a8..f8a2aaa 100644
--- a/x/src/main/java/com/yanzhenjie/recyclerview/SwipeMenuLayout.java
+++ b/x/src/main/java/com/yanzhenjie/recyclerview/SwipeMenuLayout.java
@@ -169,7 +169,8 @@ public boolean onInterceptTouchEvent(MotionEvent ev) {
         switch (action) {
             case MotionEvent.ACTION_DOWN: {
                 mDownX = mLastX = (int)ev.getX();
-                mDownY = (int)ev.getY();
+                mDownY = mLastY = (int)ev.getY();
+                // mDownY = (int)ev.getY();
                 return false;
             }
             case MotionEvent.ACTION_MOVE: {
@@ -528,4 +529,4 @@ protected void onLayout(boolean changed, int l, int t, int r, int b) {
         }
     }
 
-}
\ No newline at end of file
+}