diff --git a/core/src/main/java/com/taobao/arthas/core/shell/impl/ShellServerImpl.java b/core/src/main/java/com/taobao/arthas/core/shell/impl/ShellServerImpl.java
index e02e23b5..802171fb 100644
--- a/core/src/main/java/com/taobao/arthas/core/shell/impl/ShellServerImpl.java
+++ b/core/src/main/java/com/taobao/arthas/core/shell/impl/ShellServerImpl.java
@@ -19,7 +19,6 @@ import com.taobao.arthas.core.shell.system.impl.InternalCommandManager;
 import com.taobao.arthas.core.shell.system.impl.JobControllerImpl;
 import com.taobao.arthas.core.shell.term.Term;
 import com.taobao.arthas.core.shell.term.TermServer;
-import com.taobao.arthas.core.shell.term.impl.httptelnet.HttpTelnetTermServer;
 
 import java.lang.instrument.Instrumentation;
 import java.util.ArrayList;
@@ -184,6 +183,7 @@ public class ShellServerImpl extends ShellServer {
 
         synchronized (ShellServerImpl.this) {
             sessions.remove(shell.id);
+            shell.close("network error");
             completeSessionClosed = sessions.isEmpty() && closed;
         }
         if (completeSessionClosed) {