diff --git a/boxes/generators/typetray.py b/boxes/generators/typetray.py
index 51a5f3c..46a4854 100644
--- a/boxes/generators/typetray.py
+++ b/boxes/generators/typetray.py
@@ -50,7 +50,7 @@ class TypeTray(Boxes):
         for y in self.sy[:-1]:
             posy += y + self.thickness
             posx = 0
-            for x in self.sx:
+            for x in reversed(self.sx):
                 self.fingerHolesAt(posy, posx, x)
                 posx += x + self.thickness