diff --git a/wx/lib/agw/piectrl.py b/wx/lib/agw/piectrl.py
index 199a9a75..44d3466b 100644
--- a/wx/lib/agw/piectrl.py
+++ b/wx/lib/agw/piectrl.py
@@ -524,8 +524,8 @@ class PieCtrl(wx.Window):
     def RecreateCanvas(self):
         """ Recreates the :class:`PieCtrl` container (canvas). """
 
-        self._canvasbitmap = wx.Bitmap(self.GetSize().GetWidth(),
-                                       self.GetSize().GetHeight())
+        self._canvasbitmap = wx.Bitmap(self.GetSize().GetWidth() or 1,
+                                       self.GetSize().GetHeight() or 1)
         self._canvasDC.SelectObject(self._canvasbitmap)