diff --git a/pyminer2/extensions/packages/ipython_console/ipythonqtconsole.py b/pyminer2/extensions/packages/ipython_console/ipythonqtconsole.py
index 679229c3e9aa1fcfa8ea08d828fbf379c0c308b7..c5c5c5ccb0472a6846bd030e444161157d315905 100644
--- a/pyminer2/extensions/packages/ipython_console/ipythonqtconsole.py
+++ b/pyminer2/extensions/packages/ipython_console/ipythonqtconsole.py
@@ -41,10 +41,10 @@ class ConsoleInitThread(QObject):
         # wait for exit
         self.wait_condition.wait(self.mutex)
         self.mutex.unlock()
-
+        
         # stop channels and kernel
         kernel_client.stop_channels()
-        kernel_manager.shutdown_kernel()
+        kernel_manager.shutdown_kernel(now=True)  # add now=True; Fix exit error;  200924 liugang
 
     def stop(self):
         self.wait_condition.wakeAll()