diff --git a/layouts/layout.go b/layouts/layout.go
index 1e44f9b..9921a88 100644
--- a/layouts/layout.go
+++ b/layouts/layout.go
@@ -18,18 +18,17 @@ type Layout interface {
 	// and changes the position of the entiries in the slice so that they
 	// are properly laid out. The given width and height should not be less
 	// than what is returned by MinimumSize.
-	Arrange (entries []LayoutEntry, margin int, bounds image.Rectangle)
+	Arrange (entries []LayoutEntry, bounds image.Rectangle)
 
 	// MinimumSize returns the minimum width and height that the layout
 	// needs to properly arrange the given slice of layout entries.
-	MinimumSize (entries []LayoutEntry, margin int) (width, height int)
+	MinimumSize (entries []LayoutEntry) (width, height int)
 
 	// FlexibleHeightFor Returns the minimum height the layout needs to lay
 	// out the specified elements at the given width, taking into account
 	// flexible elements.
 	FlexibleHeightFor (
 		entries []LayoutEntry,
-		margin int,
 		squeeze int,
 	) (
 		height int,