diff --git a/IPython/frontend/wx/wx_frontend.py b/IPython/frontend/wx/wx_frontend.py
index b0a1b71..493f4c4 100644
--- a/IPython/frontend/wx/wx_frontend.py
+++ b/IPython/frontend/wx/wx_frontend.py
@@ -171,7 +171,8 @@ class WxController(ConsoleWidget, PrefilterFrontEnd):
         """
         self.new_prompt(prompt)
         self._input_state = 'raw_input'
-        del self._cursor 
+        if hasattr(self, '_cursor'):
+            del self._cursor 
         self.SetCursor(wx.StockCursor(wx.CURSOR_CROSS))
         self.waiting = True
         self.__old_on_enter = self._on_enter