diff --git a/spyder/plugins/ipythonconsole/widgets/main_widget.py b/spyder/plugins/ipythonconsole/widgets/main_widget.py
index f32a434badc..ce5eeadb3f5 100644
--- a/spyder/plugins/ipythonconsole/widgets/main_widget.py
+++ b/spyder/plugins/ipythonconsole/widgets/main_widget.py
@@ -350,10 +350,6 @@ def __init__(self, name=None, plugin=None, parent=None):
         # Update the list of envs at startup
         self.get_envs()
 
-    def on_close(self):
-        self.mainwindow_close = True
-        self.close_all_clients()
-
     # ---- PluginMainWidget API and settings handling
     # ------------------------------------------------------------------------
     def get_title(self):