diff --git a/game/iter_fractal_viewer.py b/game/iter_fractal_viewer.py
index 7a6cb17..b4ba0e6 100644
--- a/game/iter_fractal_viewer.py
+++ b/game/iter_fractal_viewer.py
@@ -69,7 +69,7 @@ class IterFractalViewer(arcade.gui.UIView):
         if button_name == "a":
             self.zoom_start_position = self.cursor_sprite.center_x, self.cursor_sprite.center_y
             self.dragging_with_controller = True
-        elif button_name == "b":
+        elif button_name == "start":
             self.main_exit()
 
     def on_button_release(self, controller, button_name):
diff --git a/game/sierpinsky_carpet.py b/game/sierpinsky_carpet.py
index 96cc73a..38182e8 100644
--- a/game/sierpinsky_carpet.py
+++ b/game/sierpinsky_carpet.py
@@ -76,7 +76,7 @@ class SierpinskyCarpetViewer(arcade.gui.UIView):
     def on_button_press(self, controller, name):
         if name == "a":
             self.on_mouse_press(self.cursor_sprite.left, self.cursor_sprite.bottom, arcade.MOUSE_BUTTON_LEFT, 0)
-        elif name == "b":
+        elif name == "start":
             self.main_exit()
 
     def on_stick_motion(self, controller, name, vector):