diff --git a/boxes/generators/universalbox.py b/boxes/generators/universalbox.py
index fe5c3cd..eba77d8 100644
--- a/boxes/generators/universalbox.py
+++ b/boxes/generators/universalbox.py
@@ -25,7 +25,8 @@ class UniversalBox(_TopEdge, _ChestLid):
 
     def __init__(self):
         Boxes.__init__(self)
-        self.addTopEdgeSettings(roundedtriangle={"outset" : 1})
+        self.addTopEdgeSettings(roundedtriangle={"outset" : 1},
+                                hinge={"outset" : True})
         self.addSettingsArgs(edges.FlexSettings)
         self.buildArgParser("top_edge", "bottom_edge",
                             "x", "y", "h", "outside")