diff --git a/assign3.md b/assign3.md
index d3a3249adf6c90896ac1a1d38c12ae80c0baba7a..c5391bc9546796ef09c95ef274b0a79f2f86fc31 100644
--- a/assign3.md
+++ b/assign3.md
@@ -140,6 +140,7 @@ class ButtonTile: UIButton {
         self.init()
         tile = t
     }
+}
 ```
 where you have defined `Tile` in your new model. You can use a `ButtonTile`
 just like a `UIButton`, but it has the `Tile` information readily at hand