diff --git a/panda/src/display/graphicsWindow.I b/panda/src/display/graphicsWindow.I
index b168af1c19..acbaf3032f 100644
--- a/panda/src/display/graphicsWindow.I
+++ b/panda/src/display/graphicsWindow.I
@@ -240,7 +240,7 @@ close_window() {
 ////////////////////////////////////////////////////////////////////
 INLINE bool GraphicsWindow::
 is_closed() const {
-
+
   return (_gsg == (GraphicsStateGuardian *)NULL);
 }