diff --git a/rplugin/python3/nvim_ipy/__init__.py b/rplugin/python3/nvim_ipy/__init__.py
index 3a55b02..f922567 100644
--- a/rplugin/python3/nvim_ipy/__init__.py
+++ b/rplugin/python3/nvim_ipy/__init__.py
@@ -226,6 +226,7 @@ def connect(self, argv):
         has_previous = self.has_connection
         if has_previous:
             # TODO: kill last kernel if we owend it?
+            JupyterVimApp.instance().kernel_client.stop_channels()
             JupyterVimApp.clear_instance()
 
         self.ip_app = JupyterVimApp.instance()