diff --git a/hid/simple_keypad.py b/hid/simple_keypad.py
index a3cdc9e..2cd036c 100644
--- a/hid/simple_keypad.py
+++ b/hid/simple_keypad.py
@@ -26,8 +26,8 @@
 keyboard = Keyboard(usb_hid.devices)
 
 keys_to_press = (
-    (Keycode.ALT, Keycode.TAB),
-    (Keycode.F14,),
+    [Keycode.ALT, Keycode.TAB],
+    [Keycode.F14],
     # etc. each entry matches a button, and has to be a tuple or list
 )