Ionic action sheet mising cancel button

We are using an action sheet and the cancel button that appears on other platforms, but does not appear on Android. It seems that in ionic’s css the button is being completely overridden, preventing it from appearing. See ionic.css line 38:

.platform-android .action-sheet-cancel {
display: none; }

If I override this, the cancel button appears. Is there a reason this is being done that I should be aware of when overriding it?