diff --git a/boxes/edges.py b/boxes/edges.py
index 4f415808..46760c07 100644
--- a/boxes/edges.py
+++ b/boxes/edges.py
@@ -1456,7 +1456,7 @@ def endwidth(self) -> float:
 
     def margin(self) -> float:
         if self.settings.outset and (
-                self.grip_percentage > 0.0 or
+                self.settings.grip_percentage > 0.0 or
                 self.settings.grip_length > 0.0 ):
             return self.settings.thickness + self.boxes.edges['g'].margin()
         else: