diff --git a/panda/src/display/graphicsWindow.cxx b/panda/src/display/graphicsWindow.cxx
index 18397261ba..a436493d80 100644
--- a/panda/src/display/graphicsWindow.cxx
+++ b/panda/src/display/graphicsWindow.cxx
@@ -73,6 +73,7 @@ GraphicsWindow(GraphicsEngine *engine, GraphicsPipe *pipe,
 GraphicsWindow::
 ~GraphicsWindow() {
   // Clean up python event handlers.
+#ifdef HAVE_PYTHON
   PythonWinProcClasses::iterator iter;
   for (iter = _python_window_proc_classes.begin(); 
        iter != _python_window_proc_classes.end();