diff --git a/src/main/java/org/wlld/randomForest/Tree.java b/src/main/java/org/wlld/randomForest/Tree.java
index 4268532..5975490 100644
--- a/src/main/java/org/wlld/randomForest/Tree.java
+++ b/src/main/java/org/wlld/randomForest/Tree.java
@@ -238,7 +238,6 @@ public class Tree {//决策树
                 }
             }
             if (!isOk) {//当前类别缺失，未知的属性值
-                punishment(treeWithTrust);
                 punishment(treeWithTrust);
                 int index = random.nextInt(nodeList.size());
                 node = nodeList.get(index);