diff --git a/src/virtManager/autodrawer.py b/src/virtManager/autodrawer.py
index 14b3b1d7f..56a9a80c3 100644
--- a/src/virtManager/autodrawer.py
+++ b/src/virtManager/autodrawer.py
@@ -283,7 +283,7 @@ class OverBox(parentclass):
 
     def do_style_set(self, style):
         if self.is_realized():
-            self.set_background()
+            self._set_background()
 
         parentclass.do_style_set(self, style)