diff --git a/IPython/lib/guisupport.py b/IPython/lib/guisupport.py
index 8356c60..e16645b 100644
--- a/IPython/lib/guisupport.py
+++ b/IPython/lib/guisupport.py
@@ -78,6 +78,8 @@ def get_app_wx(*args, **kwargs):
     import wx
     app = wx.GetApp()
     if app is None:
+        if not kwargs.has_key('redirect'):
+            kwargs['redirect'] = False
         app = wx.PySimpleApp(*args, **kwargs)
     return app