diff --git a/core/src/main/java/com/taobao/arthas/core/shell/command/internal/RedirectHandler.java b/core/src/main/java/com/taobao/arthas/core/shell/command/internal/RedirectHandler.java
index a23c157fa..a2a8688ea 100644
--- a/core/src/main/java/com/taobao/arthas/core/shell/command/internal/RedirectHandler.java
+++ b/core/src/main/java/com/taobao/arthas/core/shell/command/internal/RedirectHandler.java
@@ -50,6 +50,8 @@ public class RedirectHandler extends PlainTextHandler implements CloseFunction {
 
     @Override
     public void close() {
-        out.close();
+        if (out != null) {
+            out.close();
+        }
     }
 }