diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/WindowExpression.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/WindowExpression.java
index fce111cae39505..5bea07fff00326 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/WindowExpression.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/WindowExpression.java
@@ -152,6 +152,9 @@ public WindowExpression withChildren(List<Expression> children) {
         if (index < children.size()) {
             return new WindowExpression(func, partitionKeys, orderKeys, (WindowFrame) children.get(index));
         }
+        if (windowFrame.isPresent()) {
+            return new WindowExpression(func, partitionKeys, orderKeys, windowFrame.get());
+        }
         return new WindowExpression(func, partitionKeys, orderKeys);
     }